Shrinivas Kulkarni: 2024 Shaw Prize in Astronomy winner talks about his fascination with variable and transient objects
This episode features an in-depth conversation with Shrinivas Kulkarni, who won the 2024 Shaw Prize in Astronomy “for his ground-breaking discoveries about millisecond pulsars, gamma-ray bursts, supernovae, and other variable or transient astronomical objects”. Based at Caltech in the US, he is also cited for his “leadership of the Palomar Transient Factory and its successor, the Zwicky Transient Facility, which have revolutionized our understanding of the time-variable optical sky”.
Kulkarni talks about his fascination with astronomical objects that change over time and he reveals the principles that have guided his varied and successful career. He also offers advice to students and early-career researchers about how to thrive in astronomy.
This podcast also features an interview with Scott Tremaine, who is chair of the selection committee for the 2024 Shaw Prize in Astronomy. Based at the Institute for Advanced Study in Princeton, New Jersey, he talks about Kulkarni’s many contributions to astronomy, including his work to make astronomical data more accessible to researchers not affiliated with major telescopes.
This podcast is sponsored by The Shaw Prize Foundation
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1 00:00:07,974 --> 00:00:11,010 Hello and welcome to the Physics world weekly 2 00:00:11,010 --> 00:00:12,847 podcast. I'm Hamish Johnston. 3 00:00:13,486 --> 00:00:16,460 This episode is sponsored by the Shaw prize 4 00:00:17,019 --> 00:00:17,260 Foundation. 5 00:00:18,140 --> 00:00:19,039 In this podcast, 6 00:00:19,339 --> 00:00:20,000 I'm in 7 00:00:20,460 --> 00:00:22,640 conversation with Sri K. 8 00:00:23,274 --> 00:00:26,087 Who is the winner of the 20 24 9 00:00:26,384 --> 00:00:28,059 shaw prize in astronomy. 10 00:00:28,538 --> 00:00:29,676 For his groundbreaking 11 00:00:30,293 --> 00:00:32,765 discoveries about millisecond P sars, 12 00:00:33,419 --> 00:00:34,458 gamma ray bursts, 13 00:00:35,017 --> 00:00:35,517 supernova, 14 00:00:36,135 --> 00:00:39,352 and other variable or transient astronomical 15 00:00:40,050 --> 00:00:40,290 objects. 16 00:00:40,944 --> 00:00:43,818 He's also cited for his leadership of the 17 00:00:43,977 --> 00:00:48,687 Palo transient facility, and its successor the Wiki 18 00:00:48,687 --> 00:00:49,885 transient facility. 19 00:00:50,299 --> 00:00:54,366 Which have revolutionized our understanding of the time 20 00:00:54,366 --> 00:00:54,866 variable 21 00:00:55,323 --> 00:00:56,280 optical sky. 22 00:00:57,237 --> 00:01:00,202 This episode also features an interview with Scott 23 00:01:00,361 --> 00:01:00,837 T, 24 00:01:01,234 --> 00:01:04,195 who is the chair of the selection committee 25 00:01:04,251 --> 00:01:06,180 for the 20 24 26 00:01:06,553 --> 00:01:08,220 shop prize in astronomy. 27 00:01:09,188 --> 00:01:12,213 The shaw prize is an international prize based 28 00:01:12,213 --> 00:01:13,009 in Hong Kong. 29 00:01:13,566 --> 00:01:16,351 It consists of 3 annual awards. 30 00:01:17,084 --> 00:01:18,602 The prize in astronomy, 31 00:01:19,082 --> 00:01:21,799 the prize in life science and medicine, 32 00:01:22,198 --> 00:01:24,696 and the prize in mathematical sciences. 33 00:01:25,649 --> 00:01:30,225 Each prize carries a monetary award of 1200000.0 34 00:01:30,604 --> 00:01:31,403 Us dollars. 35 00:01:32,203 --> 00:01:35,135 The prize was established by run run shaw 36 00:01:35,412 --> 00:01:37,578 a media mo and philanthropist 37 00:01:38,268 --> 00:01:41,440 and was first presented in 2004. 38 00:01:42,313 --> 00:01:44,416 Celebrating its 20 first 39 00:01:44,871 --> 00:01:48,156 anniversary, the prize has honored over 100 40 00:01:48,531 --> 00:01:50,281 individuals from across the world. 41 00:01:51,173 --> 00:01:54,044 This year, the shaw prize is awarded to 42 00:01:54,044 --> 00:01:55,900 4 distinguished scientists 43 00:01:56,277 --> 00:01:56,777 and 44 00:01:57,234 --> 00:01:57,474 mathematicians. 45 00:01:58,271 --> 00:02:00,048 They are Sri K, 46 00:02:00,678 --> 00:02:02,423 for the prize in astronomy. 47 00:02:03,137 --> 00:02:04,113 She lay 48 00:02:04,643 --> 00:02:08,315 and Stuart Or for life science and medicine 49 00:02:08,703 --> 00:02:11,824 and Peter Sa for mathematical sciences. 50 00:02:12,993 --> 00:02:16,806 Sri K was born in India and completed 51 00:02:16,806 --> 00:02:20,569 an Ms degree in physics at the Indian 52 00:02:21,049 --> 00:02:21,870 Institute of technology 53 00:02:22,250 --> 00:02:24,889 in New delhi in 19 78. 54 00:02:25,530 --> 00:02:27,940 He then went to the Us where he 55 00:02:27,940 --> 00:02:32,087 did a Phd in astronomy in 19 83 56 00:02:32,142 --> 00:02:33,910 at the University of California 57 00:02:34,282 --> 00:02:34,758 Berkeley. 58 00:02:35,329 --> 00:02:36,844 In 19 85, 59 00:02:37,084 --> 00:02:40,274 he joined Cal where he is now George 60 00:02:40,434 --> 00:02:45,115 Elle Hale professor of astronomy and planetary science 61 00:02:45,234 --> 00:02:47,866 is. He joins me down the line from 62 00:02:48,025 --> 00:02:48,525 California. 63 00:02:57,681 --> 00:03:00,646 Hi, S. Welcome to the podcast and 64 00:03:01,180 --> 00:03:04,202 congratulations on winning the sharp prize in astronomy. 65 00:03:05,092 --> 00:03:06,205 Happy to join Amy. 66 00:03:06,762 --> 00:03:09,307 So, I wanted to start by asking you 67 00:03:09,307 --> 00:03:11,217 about the focus of your research. 68 00:03:11,789 --> 00:03:14,440 What fa you about variable 69 00:03:14,816 --> 00:03:15,715 and transient 70 00:03:16,091 --> 00:03:16,591 astronomical 71 00:03:17,207 --> 00:03:17,525 objects? 72 00:03:18,402 --> 00:03:20,713 Well, how can you 2 answers to that? 73 00:03:21,604 --> 00:03:23,600 The first 1 is in my view, 74 00:03:24,558 --> 00:03:25,058 I'm 75 00:03:25,835 --> 00:03:26,335 fascinated, 76 00:03:27,511 --> 00:03:28,810 I would say by 77 00:03:29,188 --> 00:03:30,305 almost everything in life. 78 00:03:31,914 --> 00:03:32,392 And 79 00:03:34,145 --> 00:03:35,681 I think honestly, 80 00:03:36,616 --> 00:03:37,253 you know, if you're, 81 00:03:38,384 --> 00:03:39,362 think about anything, 82 00:03:39,739 --> 00:03:40,696 any phenomena. 83 00:03:41,413 --> 00:03:43,566 For more than how say, maybe a minute, 84 00:03:43,805 --> 00:03:44,863 you'd find it fascinating. 85 00:03:45,798 --> 00:03:46,516 For example, 86 00:03:47,247 --> 00:03:49,467 you know, sharks can go at very high 87 00:03:49,467 --> 00:03:50,894 speed in the water. 88 00:03:51,449 --> 00:03:53,851 Where turns out nature has developed a certain 89 00:03:53,906 --> 00:03:54,644 kind of 90 00:03:54,954 --> 00:03:57,425 their skin, which is actually not very smooth 91 00:03:57,425 --> 00:03:58,961 as you might think, but slightly 92 00:03:59,418 --> 00:04:02,070 rough that allows them to have less turbulence 93 00:04:02,128 --> 00:04:02,925 and go faster. 94 00:04:03,340 --> 00:04:05,040 Why, I think that's extremely fascinating. 95 00:04:06,139 --> 00:04:07,580 You may not get a nobel prize for 96 00:04:07,580 --> 00:04:09,280 that. But I think it is very fascinating. 97 00:04:11,594 --> 00:04:13,372 That's, I would say number 1 98 00:04:13,911 --> 00:04:15,828 a part of the question... A first part 99 00:04:15,828 --> 00:04:16,627 of my response. 100 00:04:17,666 --> 00:04:19,994 Second 1 is, I'm a bit more of 101 00:04:19,994 --> 00:04:22,784 a what... I might call in a good 102 00:04:22,784 --> 00:04:24,002 way hook an 103 00:04:25,176 --> 00:04:25,676 scientist. 104 00:04:26,053 --> 00:04:26,792 That is 105 00:04:27,981 --> 00:04:29,119 I don't believe, 106 00:04:30,213 --> 00:04:32,627 personally again that I had to 107 00:04:33,163 --> 00:04:35,236 take an important question and address it. 108 00:04:37,402 --> 00:04:39,974 My view is that at any given time 109 00:04:40,271 --> 00:04:42,842 as a result of our technology and 110 00:04:43,154 --> 00:04:46,355 the capacity we have. Some questions are more 111 00:04:46,412 --> 00:04:47,365 answer than others. 112 00:04:48,319 --> 00:04:48,819 And 113 00:04:50,797 --> 00:04:54,137 I would rather use that as a way 114 00:04:54,137 --> 00:04:55,648 to choose my direction, 115 00:04:56,364 --> 00:04:58,590 than the more classical way which is your 116 00:04:58,590 --> 00:05:00,124 fascinated by particular 117 00:05:00,833 --> 00:05:03,944 question or a issue, and then you said 118 00:05:03,944 --> 00:05:05,459 about your life to answer that. 119 00:05:07,054 --> 00:05:09,048 No value judgment here. I'm just giving you 120 00:05:09,048 --> 00:05:10,165 my views on that, 121 00:05:11,059 --> 00:05:11,299 So, 122 00:05:12,737 --> 00:05:15,634 the time I would say starting with the 123 00:05:16,413 --> 00:05:18,651 turn of the millennium has been ripe for 124 00:05:18,651 --> 00:05:19,710 variable and transient 125 00:05:20,821 --> 00:05:21,321 astronomical 126 00:05:21,778 --> 00:05:23,133 the study of these objects, 127 00:05:24,887 --> 00:05:28,336 mainly because the technology to too, so 128 00:05:28,728 --> 00:05:31,121 has grown and in fact, it makes it 129 00:05:31,121 --> 00:05:31,621 affordable 130 00:05:32,557 --> 00:05:33,115 as well as, 131 00:05:34,631 --> 00:05:35,131 practical 132 00:05:35,588 --> 00:05:37,662 to repeatedly serve with a sky and look 133 00:05:37,662 --> 00:05:38,220 for changes. 134 00:05:39,109 --> 00:05:40,379 If we try to do the sort of 135 00:05:40,379 --> 00:05:43,000 projects I've done in the last 15 years. 136 00:05:43,556 --> 00:05:45,779 Let's say 30 years ago, it would have 137 00:05:45,779 --> 00:05:48,339 been just not possible there. Sensors would cost 138 00:05:48,339 --> 00:05:50,727 more. The computation was simply not there. 139 00:05:51,602 --> 00:05:52,102 So 140 00:05:54,069 --> 00:05:56,393 that's the reason why in the you know, 141 00:05:56,552 --> 00:05:57,030 let's say, 142 00:05:57,827 --> 00:06:00,138 the last 50 years, much of the focus 143 00:06:00,138 --> 00:06:02,927 has been in catalog loving the sky, in 144 00:06:02,927 --> 00:06:05,497 various bands. A radio and optical ultra ultraviolet 145 00:06:05,497 --> 00:06:06,216 x rays and on. 146 00:06:06,936 --> 00:06:08,134 But having done that, 147 00:06:08,934 --> 00:06:12,504 now the sensor and computing technology has decreased 148 00:06:12,941 --> 00:06:15,479 the next obvious step realized is to do 149 00:06:15,479 --> 00:06:18,279 repeated surveys of the sky. Was a long 150 00:06:18,335 --> 00:06:20,000 answer to your short question. 151 00:06:21,048 --> 00:06:24,391 Transient and variable objects. So these these are 152 00:06:24,391 --> 00:06:27,256 objects that blink on and off or and 153 00:06:27,256 --> 00:06:29,905 or or maybe they come on really brightly 154 00:06:29,962 --> 00:06:32,687 for a short amount of time and then 155 00:06:32,687 --> 00:06:35,318 fade away. Is the we have a good 156 00:06:35,318 --> 00:06:38,188 way of describing them. Yeah. They'll basically 3 157 00:06:38,188 --> 00:06:38,688 categories. 158 00:06:40,988 --> 00:06:42,442 The first 1 159 00:06:42,975 --> 00:06:45,438 moving from the solar system outward. The first 160 00:06:45,438 --> 00:06:46,574 1 is actually 161 00:06:47,044 --> 00:06:49,118 moving objects. So if I take a picture, 162 00:06:49,437 --> 00:06:50,655 let's say a sky 163 00:06:51,273 --> 00:06:53,507 now. And even if I take a picture, 164 00:06:53,666 --> 00:06:54,360 maybe even 165 00:06:55,034 --> 00:06:56,066 few minutes later. 166 00:06:56,780 --> 00:06:59,185 Some objects would have moved because there are 167 00:06:59,241 --> 00:07:00,194 loa earth orbit, 168 00:07:00,670 --> 00:07:02,599 a bit away, know, near earth asteroid. 169 00:07:03,384 --> 00:07:05,293 And if I take 1, like, an hour 170 00:07:05,293 --> 00:07:07,441 away, then you the main belt asteroids would 171 00:07:07,441 --> 00:07:08,736 vote. Okay? So 172 00:07:09,111 --> 00:07:10,168 you would think 173 00:07:10,559 --> 00:07:12,155 if you just sat on that pixel, oh, 174 00:07:12,315 --> 00:07:14,252 the object has disappeared No. It's just 175 00:07:14,949 --> 00:07:17,264 reappeared somewhere else. So moving objects in that 176 00:07:17,264 --> 00:07:19,180 sense are a part of this search. Okay? 177 00:07:19,514 --> 00:07:22,160 So where should call this as moving, variable 178 00:07:22,455 --> 00:07:25,077 and tries and objects. So I finished moving. 179 00:07:26,031 --> 00:07:26,667 Variable is, 180 00:07:27,541 --> 00:07:28,439 many stars 181 00:07:29,230 --> 00:07:30,270 Oh, I would say, 182 00:07:31,069 --> 00:07:32,589 depending on how your sensitivity be, 183 00:07:33,790 --> 00:07:34,270 easily, 184 00:07:34,750 --> 00:07:36,270 to 10 percent of the stars, 185 00:07:37,161 --> 00:07:38,274 actually are not steady. 186 00:07:39,547 --> 00:07:42,092 We are lucky. The sun is an extremely 187 00:07:42,092 --> 00:07:42,729 steady star. 188 00:07:43,619 --> 00:07:45,285 Can you imagine if the sun where in 189 00:07:45,285 --> 00:07:47,349 its output by 1 percent. I mean, our 190 00:07:47,349 --> 00:07:49,254 global warming problems would be very minor. 191 00:07:50,524 --> 00:07:51,024 But 192 00:07:51,572 --> 00:07:53,883 many stars vary at the 1 percent level, 193 00:07:54,201 --> 00:07:56,432 at least a few of stars simply vary 194 00:07:56,432 --> 00:07:57,945 for a variety of underlying reasons. 195 00:07:58,517 --> 00:08:00,526 They may be p shading. They may have 196 00:08:00,661 --> 00:08:02,035 rotating with large star, 197 00:08:02,806 --> 00:08:04,871 or there may be in a binary system 198 00:08:04,871 --> 00:08:06,721 showing eclipse or re 199 00:08:07,333 --> 00:08:07,492 modulation. 200 00:08:08,222 --> 00:08:09,917 So that's a fairly 201 00:08:10,611 --> 00:08:12,305 major phenomena variability. 202 00:08:13,079 --> 00:08:14,615 And going out of a galaxy, 203 00:08:15,309 --> 00:08:15,809 quasars, 204 00:08:16,759 --> 00:08:19,156 also vary, you know, super massive black holes 205 00:08:19,156 --> 00:08:20,456 in the centers of galaxies, 206 00:08:21,074 --> 00:08:23,952 a acc matter from the from the, you 207 00:08:23,952 --> 00:08:25,390 know, gas. They also vary. 208 00:08:26,124 --> 00:08:28,202 And transient and some are the 1 that 209 00:08:28,202 --> 00:08:31,339 most people are fascinated and the biggest character 210 00:08:31,398 --> 00:08:32,058 the biggest 211 00:08:32,437 --> 00:08:33,497 phenomena has super, 212 00:08:33,876 --> 00:08:34,435 stellar death. 213 00:08:35,089 --> 00:08:35,589 When 214 00:08:36,525 --> 00:08:39,396 massive stars die, it's a very violent process. 215 00:08:39,635 --> 00:08:41,230 And that sort of thing that happens on 216 00:08:41,230 --> 00:08:41,549 human. 217 00:08:42,108 --> 00:08:44,182 At times because we actually understands. It would 218 00:08:44,182 --> 00:08:44,421 be 219 00:08:45,313 --> 00:08:48,027 seconds, you know, where the explosion happens, of 220 00:08:48,027 --> 00:08:49,384 course it takes a while for the light 221 00:08:49,384 --> 00:08:50,022 to come out. 222 00:08:51,459 --> 00:08:51,959 And, 223 00:08:53,547 --> 00:08:55,134 Know whether you be surprised if I told 224 00:08:55,134 --> 00:08:56,428 you there's a supernova 225 00:08:56,801 --> 00:08:58,705 somewhere in the universe every second. 226 00:08:59,578 --> 00:08:59,974 Of course, 227 00:09:00,943 --> 00:09:03,333 and every server doesn't find, you know, because 228 00:09:03,333 --> 00:09:05,006 some of them will be very faint. There'll 229 00:09:05,006 --> 00:09:06,360 be somewhere else in the sky. 230 00:09:08,369 --> 00:09:10,366 But this project that we'll talk a little 231 00:09:10,366 --> 00:09:13,403 later. I suppose the Wiki tri facility. We 232 00:09:13,403 --> 00:09:16,380 find, oh, maybe about 20000 233 00:09:17,648 --> 00:09:19,023 super Arena a year 234 00:09:20,113 --> 00:09:23,055 or candidates of which we pursue 2000. We'll 235 00:09:23,055 --> 00:09:24,009 come back to that later. 236 00:09:25,374 --> 00:09:27,833 And so, Sherry, why why do we need 237 00:09:27,833 --> 00:09:28,968 to understand 238 00:09:29,420 --> 00:09:32,299 these phenomena, you know, by understanding 239 00:09:33,322 --> 00:09:36,416 variable and transient objects. What do we learn 240 00:09:36,416 --> 00:09:37,313 about some 241 00:09:37,686 --> 00:09:39,907 about astronomy and about astro physics? 242 00:09:41,035 --> 00:09:43,102 Okay. Well, I will give my answer and 243 00:09:43,102 --> 00:09:43,658 2 parts. 244 00:09:44,374 --> 00:09:46,202 First is why do we do astronomy at 245 00:09:46,202 --> 00:09:47,474 all? I would say, 246 00:09:48,507 --> 00:09:50,355 is sometimes, you know, it's frequently, 247 00:09:50,754 --> 00:09:53,235 I asked that because it all seems so 248 00:09:53,235 --> 00:09:53,715 far out. 249 00:09:55,634 --> 00:09:56,134 And 250 00:09:56,514 --> 00:09:57,654 I would claim 251 00:09:59,089 --> 00:09:59,589 that, 252 00:10:01,809 --> 00:10:02,370 the most, 253 00:10:04,529 --> 00:10:06,629 the supreme goal of the human 254 00:10:07,259 --> 00:10:09,798 civilization should be understand the universe into which 255 00:10:09,798 --> 00:10:10,353 we are born. 256 00:10:10,987 --> 00:10:13,129 I would say this is far more important 257 00:10:13,129 --> 00:10:14,740 than anything else because 258 00:10:15,129 --> 00:10:16,409 we can actually do that. 259 00:10:19,370 --> 00:10:22,089 I still have very fascinated that sitting around 260 00:10:22,089 --> 00:10:22,730 on earth, 261 00:10:23,782 --> 00:10:26,730 already, you know, with only a few people 262 00:10:26,730 --> 00:10:30,098 left earth and come back. Already, we can 263 00:10:31,922 --> 00:10:33,831 Actually start to understanding the universe. So when 264 00:10:33,910 --> 00:10:35,422 I said the universe I'm talking was an 265 00:10:35,422 --> 00:10:37,490 astronomy of the, you stuff outside of, but 266 00:10:37,570 --> 00:10:38,786 I'm also talking about geology, 267 00:10:40,133 --> 00:10:40,633 biology 268 00:10:41,090 --> 00:10:42,527 and all this stuff. I I think this 269 00:10:42,527 --> 00:10:43,186 is the 270 00:10:43,564 --> 00:10:46,038 supreme achievement of man mankind in my view. 271 00:10:47,806 --> 00:10:50,188 It's not the literature. It's not the other 272 00:10:50,188 --> 00:10:52,412 stuff because those are things we do for 273 00:10:52,412 --> 00:10:54,954 ourselves. This is absolute when you understand the 274 00:10:54,954 --> 00:10:55,430 universe. 275 00:10:55,843 --> 00:10:58,233 You can explain to another alien the... It 276 00:10:58,233 --> 00:11:00,066 may be in different words, but it is 277 00:11:00,066 --> 00:11:01,260 understanding is universal. 278 00:11:02,296 --> 00:11:02,535 Okay. 279 00:11:03,189 --> 00:11:04,627 That's a philosophical answer. 280 00:11:06,065 --> 00:11:06,545 The more, 281 00:11:07,583 --> 00:11:08,782 narrower answer is 282 00:11:10,220 --> 00:11:10,720 the 283 00:11:11,273 --> 00:11:12,071 let's start with 284 00:11:13,506 --> 00:11:14,782 something as simple as 285 00:11:15,261 --> 00:11:17,813 asteroids. Okay? You know, a hundred years ago, 286 00:11:17,972 --> 00:11:20,125 there was a massive blast. 287 00:11:20,618 --> 00:11:21,356 In Siberia, 288 00:11:22,285 --> 00:11:23,476 called the Tu sky event. 289 00:11:24,270 --> 00:11:26,493 Well, if I think will that happened today 290 00:11:26,493 --> 00:11:28,215 and not in Siberia, but 291 00:11:28,572 --> 00:11:30,265 you know, let's say in California, 292 00:11:30,799 --> 00:11:32,628 the damage would be in men's. I mean, 293 00:11:34,537 --> 00:11:35,037 and 294 00:11:35,411 --> 00:11:36,150 if the 295 00:11:38,134 --> 00:11:39,968 asteroid was a little larger. It could be 296 00:11:39,968 --> 00:11:42,599 in more. There been ideas, maybe that Dino 297 00:11:42,599 --> 00:11:44,193 died that way and so on. But no 298 00:11:44,193 --> 00:11:46,224 question. It would be a life changing 299 00:11:46,681 --> 00:11:47,500 situation. So 300 00:11:48,197 --> 00:11:50,612 in some practical terms, it is important to 301 00:11:50,670 --> 00:11:52,346 accept and understand that, you know, 302 00:11:53,239 --> 00:11:55,816 our life yet could be impacted by these 303 00:11:56,035 --> 00:11:57,014 objects. So 304 00:11:58,592 --> 00:12:02,221 that's extremely practical. And then only by catalog 305 00:12:02,519 --> 00:12:05,173 and then maybe thinking of missions to 306 00:12:06,508 --> 00:12:09,335 slightly nudge away. Those hazardous 307 00:12:09,711 --> 00:12:10,427 objects. Okay. 308 00:12:11,542 --> 00:12:13,237 At the other end, Super, 309 00:12:15,126 --> 00:12:16,183 you know, if we 310 00:12:16,653 --> 00:12:18,793 in, most of our bodies is water. Okay. 311 00:12:18,952 --> 00:12:20,855 Let's get rid of that. And then we 312 00:12:20,855 --> 00:12:23,233 have things like calcium, in our teeth and 313 00:12:23,233 --> 00:12:24,159 bones and 314 00:12:25,079 --> 00:12:26,120 iron in a blood. 315 00:12:26,679 --> 00:12:28,279 Where do you think this came from? This 316 00:12:28,279 --> 00:12:30,120 did not come from the universe directly? When 317 00:12:30,120 --> 00:12:31,559 the universe was born, 318 00:12:32,614 --> 00:12:34,132 there's hydrogen and helium, 319 00:12:34,692 --> 00:12:36,450 a little bit of lithium maybe, and that's 320 00:12:36,450 --> 00:12:36,770 about it. 321 00:12:37,729 --> 00:12:37,969 Okay? 322 00:12:38,848 --> 00:12:41,665 It's the stars which turned out to be 323 00:12:42,456 --> 00:12:42,956 factories 324 00:12:44,125 --> 00:12:46,827 synthesized new elements through fusion reaction. 325 00:12:48,257 --> 00:12:50,585 So low mass style, like the sun, they 326 00:12:51,134 --> 00:12:53,052 by the time they die there to produced, 327 00:12:53,212 --> 00:12:54,011 you know, carbon. 328 00:12:54,650 --> 00:12:56,408 That sort of that. So they go through 329 00:12:56,408 --> 00:12:58,486 hydrogen to Helium then Helium to carb. 330 00:13:00,498 --> 00:13:03,216 But stars more massive than that they can 331 00:13:03,216 --> 00:13:05,533 produce all the way to ions through fusion, 332 00:13:06,492 --> 00:13:08,111 and then some very exotic 333 00:13:08,890 --> 00:13:11,774 it's lo produced stuff beyond iron all the 334 00:13:11,774 --> 00:13:13,926 way out to gold and thinks that. Some 335 00:13:13,926 --> 00:13:14,563 of us like. 336 00:13:15,759 --> 00:13:16,259 So 337 00:13:17,209 --> 00:13:19,286 I would say, understanding the can... The... 338 00:13:19,925 --> 00:13:22,342 Basically, how did the universe, which was a 339 00:13:22,482 --> 00:13:24,810 very simple physical object? You know, how did 340 00:13:24,810 --> 00:13:28,231 chemistry get introduced namely the periodic table? That's 341 00:13:28,231 --> 00:13:30,402 very much the domain of supernova 342 00:13:30,777 --> 00:13:31,095 physics? 343 00:13:32,468 --> 00:13:34,625 So that's sort of a grand quest of 344 00:13:34,625 --> 00:13:37,361 which we have astronomers have made amazing progress 345 00:13:37,501 --> 00:13:38,060 in the last, 346 00:13:38,792 --> 00:13:40,944 Oh, I would say about 70 years, we 347 00:13:40,944 --> 00:13:42,001 actually sort of 348 00:13:43,174 --> 00:13:45,166 understand the chemical buildup of the universe. 349 00:13:46,059 --> 00:13:48,139 And, S, I wanted to ask you about 350 00:13:48,139 --> 00:13:50,720 your involvement with, you know, some of the 351 00:13:50,940 --> 00:13:52,700 ob trees and facilities that, 352 00:13:53,594 --> 00:13:56,308 that have made that possible made our understanding 353 00:13:56,308 --> 00:13:58,144 of of transient possible. 354 00:13:58,543 --> 00:14:00,160 You led the Palo 355 00:14:00,698 --> 00:14:01,198 transient 356 00:14:01,576 --> 00:14:02,076 factory 357 00:14:02,709 --> 00:14:03,986 and its successor, 358 00:14:04,465 --> 00:14:06,083 the wiki transient 359 00:14:06,461 --> 00:14:09,734 facility. What were the goals of these facilities? 360 00:14:09,894 --> 00:14:11,331 And and what have they achieved? 361 00:14:12,862 --> 00:14:13,899 Yeah. So 362 00:14:14,855 --> 00:14:16,290 I took you a little bit of background 363 00:14:16,290 --> 00:14:18,203 on how these projects came about. 364 00:14:21,169 --> 00:14:21,669 I 365 00:14:23,889 --> 00:14:25,649 I'm very curious... As I told you, I'm 366 00:14:25,649 --> 00:14:28,549 very curious. I find almost anything very curious. 367 00:14:29,184 --> 00:14:30,705 The only question is, how do you spend 368 00:14:30,705 --> 00:14:31,184 time then? 369 00:14:32,225 --> 00:14:33,985 Well, you to have some talent, and you 370 00:14:33,985 --> 00:14:35,825 had to have something in that field that 371 00:14:35,825 --> 00:14:38,708 gives Ad. Gives you an to work in 372 00:14:38,708 --> 00:14:39,344 that field. 373 00:14:41,490 --> 00:14:41,888 So 374 00:14:43,160 --> 00:14:46,115 over my career about Oh, I know. Every 375 00:14:46,115 --> 00:14:48,181 5 to 10 years, I switched fields because 376 00:14:48,181 --> 00:14:49,690 the other side of being curious is after 377 00:14:49,769 --> 00:14:50,905 I understand something 378 00:14:51,278 --> 00:14:53,662 to a reasonable level Actually, I lose interest 379 00:14:53,662 --> 00:14:55,423 in that because I'm and then I wanna 380 00:14:55,423 --> 00:14:57,167 to go to the next stuff that seems 381 00:14:57,167 --> 00:14:57,563 interesting. 382 00:14:58,673 --> 00:14:58,990 So, 383 00:15:01,289 --> 00:15:03,768 about 96 and my friend Dale Fail and 384 00:15:03,847 --> 00:15:04,904 I started a program 385 00:15:05,439 --> 00:15:05,939 to 386 00:15:06,315 --> 00:15:07,748 understand a gamma ray bus, 387 00:15:08,623 --> 00:15:10,056 we thought there's an opportunity. 388 00:15:10,707 --> 00:15:11,661 So I also I had to tell you 389 00:15:11,661 --> 00:15:13,410 that there's a... I sort of look at 390 00:15:13,410 --> 00:15:15,318 many of what I do in a slightly 391 00:15:15,318 --> 00:15:16,931 more business like fashion 392 00:15:17,305 --> 00:15:18,498 because what I do with to me is 393 00:15:18,498 --> 00:15:20,583 not as important, but you know, whether can 394 00:15:20,663 --> 00:15:23,699 I do it because everything's interesting? The only 395 00:15:23,699 --> 00:15:26,016 question are, which wants to choose and a 396 00:15:26,016 --> 00:15:26,916 part of choosing, 397 00:15:28,027 --> 00:15:30,041 how to make a choice of a project 398 00:15:30,099 --> 00:15:30,418 is, 399 00:15:31,852 --> 00:15:33,149 my sense with a 400 00:15:33,526 --> 00:15:34,960 rapid progress can be made. 401 00:15:35,614 --> 00:15:37,210 Sort of a person, I guess he could 402 00:15:37,210 --> 00:15:37,370 say, 403 00:15:38,248 --> 00:15:41,122 lives on Ad Hill, and I wanna produce 404 00:15:41,122 --> 00:15:42,001 something very fast. 405 00:15:42,799 --> 00:15:44,795 Make progress in in a short time. 406 00:15:46,086 --> 00:15:46,485 Anyway, we... 407 00:15:47,601 --> 00:15:49,993 Our hunch on, you know, the... That G 408 00:15:49,993 --> 00:15:51,268 b's was going to be a big game 409 00:15:51,268 --> 00:15:52,623 that worked very well we. 410 00:15:54,554 --> 00:15:57,131 Made huge progress on that in and by 411 00:15:58,229 --> 00:16:00,307 you know, lots of papers in nature and 412 00:16:00,307 --> 00:16:02,145 the usual sort of stuff, that scientists, 413 00:16:02,718 --> 00:16:03,218 haven't. 414 00:16:04,313 --> 00:16:05,829 But by 2004, 415 00:16:06,547 --> 00:16:09,179 Nasa launched, on 2004 coming back from a 416 00:16:09,259 --> 00:16:09,657 Nasa, 417 00:16:10,136 --> 00:16:12,860 a launch of what has got the swift 418 00:16:12,860 --> 00:16:13,973 gamma ray observatory, 419 00:16:15,801 --> 00:16:16,539 which was 420 00:16:17,708 --> 00:16:20,608 which is gonna convert a gamma burst studies 421 00:16:20,826 --> 00:16:22,582 into AAA little industry. 422 00:16:23,858 --> 00:16:25,215 That was it was going to find about 423 00:16:25,215 --> 00:16:26,730 a hundred gamma burst in the year. 424 00:16:27,542 --> 00:16:28,042 And 425 00:16:28,814 --> 00:16:30,245 until then through, 426 00:16:30,881 --> 00:16:33,028 the previous mission or it does only 1 427 00:16:33,028 --> 00:16:34,777 a month. So this is a huge jump. 428 00:16:35,509 --> 00:16:37,026 And I said, well, this is the time 429 00:16:37,026 --> 00:16:39,900 to leave the field because now very popular 430 00:16:39,900 --> 00:16:41,417 and it's not what I call as low 431 00:16:41,417 --> 00:16:42,055 hanging fruits. 432 00:16:42,694 --> 00:16:44,131 The fruits are getting a little higher on 433 00:16:44,131 --> 00:16:44,450 the tree. 434 00:16:45,264 --> 00:16:47,202 And I start thinking about 435 00:16:49,019 --> 00:16:50,158 what is an interesting 436 00:16:51,336 --> 00:16:52,135 project to do? 437 00:16:53,107 --> 00:16:55,811 And I a more engineering bent of mind 438 00:16:55,811 --> 00:16:57,822 on on on these things. So 439 00:16:59,883 --> 00:17:00,201 And, 440 00:17:01,076 --> 00:17:03,781 1 of things was fascinated was, the study 441 00:17:03,781 --> 00:17:04,440 of Su, 442 00:17:05,928 --> 00:17:06,428 which 443 00:17:06,818 --> 00:17:08,727 in those days, was what I call as 444 00:17:08,727 --> 00:17:10,875 a small scale operation. You know, there's, like, 445 00:17:10,955 --> 00:17:12,864 a graduate student and a professor, 446 00:17:14,310 --> 00:17:16,458 the best anyone could do was take a 447 00:17:16,458 --> 00:17:17,276 small telescope, 448 00:17:18,685 --> 00:17:19,185 observe 449 00:17:19,719 --> 00:17:20,458 nearby galaxies. 450 00:17:22,438 --> 00:17:24,420 And during the day, analyze, 451 00:17:25,292 --> 00:17:27,774 the images, See something new has come up 452 00:17:28,066 --> 00:17:29,597 against nearby galaxy, 453 00:17:30,223 --> 00:17:32,454 And then a few days later, I, know, 454 00:17:33,092 --> 00:17:34,048 another student or, 455 00:17:34,924 --> 00:17:38,124 would take a spectrum and say, oh, this 456 00:17:38,124 --> 00:17:39,953 is a a this kind of super way 457 00:17:39,953 --> 00:17:41,169 to to a 458 00:17:41,543 --> 00:17:43,770 find super is easy, in the sense, you 459 00:17:43,770 --> 00:17:44,883 see something pop up. 460 00:17:45,613 --> 00:17:47,443 But to say what kind it is? Oh, 461 00:17:47,522 --> 00:17:49,352 and there's a nearly dozen sub classes, 462 00:17:49,829 --> 00:17:51,920 you need a spectrum, which is a more 463 00:17:52,629 --> 00:17:54,780 is like a fingerprint of the chemicals it 464 00:17:54,780 --> 00:17:55,417 has produced, 465 00:17:56,294 --> 00:17:58,525 oh, or the elements to be more accurate. 466 00:17:59,894 --> 00:18:00,925 And I was thinking well, 467 00:18:01,718 --> 00:18:03,305 and the record then was about, oh, let's 468 00:18:03,305 --> 00:18:05,289 say, yeah, it was done in, from a 469 00:18:05,289 --> 00:18:07,431 colleague of mine in Berkeley, Alex Silver bank 470 00:18:07,431 --> 00:18:10,633 it was about hundred a year. Okay? They're 471 00:18:10,633 --> 00:18:12,968 finding a hundred supernova year through a dedicated 472 00:18:13,027 --> 00:18:13,506 program, 473 00:18:13,904 --> 00:18:15,875 and the other more, you know, sort of 474 00:18:15,993 --> 00:18:18,930 focus pro... Other progress, maybe I let's another 475 00:18:18,930 --> 00:18:19,747 hundred also 476 00:18:20,596 --> 00:18:20,834 worldwide. 477 00:18:22,263 --> 00:18:23,056 I was thinking well, 478 00:18:25,059 --> 00:18:26,118 I thought the technology 479 00:18:26,497 --> 00:18:28,495 to do this can be highly automated, 480 00:18:30,253 --> 00:18:32,591 as well as the detectors were getting 481 00:18:33,863 --> 00:18:34,262 cheaper, 482 00:18:35,060 --> 00:18:37,772 you know, in electronics, there's a thing, lock 483 00:18:37,772 --> 00:18:39,309 or moore's law, which is 484 00:18:39,925 --> 00:18:41,919 depending exactly what component it is, 485 00:18:43,116 --> 00:18:45,221 the the the cost per 486 00:18:47,024 --> 00:18:50,042 you know, item, or transistor or sensors of 487 00:18:50,042 --> 00:18:50,542 falls 488 00:18:50,915 --> 00:18:52,821 every 18 months to 2 years. 489 00:18:53,874 --> 00:18:54,374 And 490 00:18:54,832 --> 00:18:57,229 I could foresee that in another few years, 491 00:18:58,268 --> 00:18:58,667 law 492 00:18:59,147 --> 00:19:00,665 sensors, meaning images, 493 00:19:02,669 --> 00:19:05,610 would become affordable to make large field of 494 00:19:05,610 --> 00:19:05,849 view, 495 00:19:07,280 --> 00:19:08,155 images. Okay. 496 00:19:09,361 --> 00:19:10,631 If you call... You can call it as 497 00:19:10,631 --> 00:19:13,248 a grass, which is the product of the 498 00:19:13,248 --> 00:19:16,024 size of the telescope. So the bigger telescope 499 00:19:16,024 --> 00:19:16,976 more collect, 500 00:19:17,788 --> 00:19:19,863 times how much of the sky you can 501 00:19:19,863 --> 00:19:22,178 use, you can survey at a given time. 502 00:19:23,934 --> 00:19:24,434 And 503 00:19:24,892 --> 00:19:26,923 the larger the grass the more 504 00:19:27,378 --> 00:19:27,855 unit. 505 00:19:28,651 --> 00:19:29,128 And 506 00:19:29,527 --> 00:19:30,027 so 507 00:19:32,471 --> 00:19:33,688 the 2 basic 508 00:19:34,476 --> 00:19:35,510 innovations there where, 509 00:19:36,703 --> 00:19:37,101 you know, 510 00:19:38,055 --> 00:19:38,555 build 511 00:19:39,964 --> 00:19:40,815 images with large 512 00:19:41,253 --> 00:19:43,667 very large field of you as as 513 00:19:44,125 --> 00:19:45,720 only limited by how much money you want 514 00:19:45,720 --> 00:19:46,757 to spend on sensors, 515 00:19:48,352 --> 00:19:49,330 and then 516 00:19:49,708 --> 00:19:50,505 say, you know, 517 00:19:51,396 --> 00:19:53,386 automate a lot of these things. That that 518 00:19:53,386 --> 00:19:54,762 was my goal was 519 00:19:55,376 --> 00:19:57,844 we don't need grad students and so on 520 00:19:57,844 --> 00:19:59,935 that that worked well for a while. But 521 00:20:00,231 --> 00:20:02,265 right data reduction pipelines 522 00:20:02,724 --> 00:20:03,224 that 523 00:20:04,164 --> 00:20:04,984 they... You 524 00:20:05,285 --> 00:20:07,044 obtain, you a pipeline, 525 00:20:07,365 --> 00:20:09,125 and, you know, subtract the images, 526 00:20:09,858 --> 00:20:12,171 oh, some intelligence is put in the software 527 00:20:12,171 --> 00:20:13,687 that says, okay. This looks pretty good. 528 00:20:14,803 --> 00:20:16,957 And that is part 1 of this project. 529 00:20:17,116 --> 00:20:18,313 And part 2 was as I told you 530 00:20:18,313 --> 00:20:19,683 had to get spec from. 531 00:20:20,399 --> 00:20:22,308 Well, there are many things that change in 532 00:20:22,308 --> 00:20:25,332 the sky, for example, variable stars. Now those 533 00:20:25,332 --> 00:20:27,574 you can more or less element eliminate by 534 00:20:27,574 --> 00:20:30,199 saying, it only varies by a percent or 535 00:20:30,199 --> 00:20:32,983 2 or a tenth of a percent. Okay? 536 00:20:33,143 --> 00:20:33,643 So 537 00:20:34,595 --> 00:20:35,975 but even within Supernova, 538 00:20:36,994 --> 00:20:37,875 there could be, 539 00:20:38,674 --> 00:20:39,075 false, 540 00:20:40,515 --> 00:20:43,406 nonetheless, there's such a large background of wearing 541 00:20:43,406 --> 00:20:44,383 phenomena that 542 00:20:45,076 --> 00:20:47,065 if you... If we are simply not in 543 00:20:47,065 --> 00:20:49,076 a position to go and 544 00:20:50,103 --> 00:20:52,815 get a detailed spectrum of everything that burp 545 00:20:52,815 --> 00:20:53,315 and 546 00:20:53,852 --> 00:20:56,187 explodes in the sky because our ability to 547 00:20:56,803 --> 00:20:59,377 find them at high confidence level isn't 548 00:21:00,166 --> 00:21:02,706 wasn't that high at that point. So part 549 00:21:02,706 --> 00:21:04,159 2 was to actually 550 00:21:05,484 --> 00:21:05,984 improve 551 00:21:06,913 --> 00:21:08,048 understanding of that supernova 552 00:21:09,152 --> 00:21:09,710 and for that, 553 00:21:11,064 --> 00:21:12,657 the innovation I had in mind was to 554 00:21:12,657 --> 00:21:15,207 use another telescope scope, a bigger telescope scope 555 00:21:15,207 --> 00:21:15,525 actually, 556 00:21:16,814 --> 00:21:19,042 to get roughly what are called colors, which 557 00:21:19,042 --> 00:21:19,940 is is it 558 00:21:20,475 --> 00:21:22,066 is it blue? Is it yellow? Is it 559 00:21:22,066 --> 00:21:23,817 red? Because that tells you what kind of 560 00:21:23,817 --> 00:21:25,664 supernova it is as well as it's a 561 00:21:25,664 --> 00:21:27,825 way to also eliminate some of the false 562 00:21:27,825 --> 00:21:28,305 positives. 563 00:21:28,785 --> 00:21:30,945 So they stand the idea of using 2 564 00:21:30,945 --> 00:21:32,404 telescopes curves simultaneously, 565 00:21:34,305 --> 00:21:37,133 sounds you know, it's not a the deepest 566 00:21:37,191 --> 00:21:39,025 idea, but that was, I would say, a 567 00:21:39,025 --> 00:21:41,120 bit major innovation. The idea of using 568 00:21:41,736 --> 00:21:44,781 automated pipelines was around, but insisting that they 569 00:21:44,781 --> 00:21:47,755 work every night, it with a very high 570 00:21:48,133 --> 00:21:50,686 fault tolerance runs. Yeah. And that's what led 571 00:21:50,686 --> 00:21:51,299 to the power 572 00:21:51,895 --> 00:21:54,302 factory. Came in with a 48 inch 573 00:21:54,676 --> 00:21:55,176 Palo 574 00:21:55,788 --> 00:21:56,662 Schmidt telescope scope 575 00:21:57,457 --> 00:21:58,195 called the 576 00:21:59,140 --> 00:21:59,878 ocean telescope 577 00:22:00,650 --> 00:22:01,763 with a Schmidt camera, 578 00:22:02,319 --> 00:22:02,819 and 579 00:22:03,432 --> 00:22:05,045 the palo 60 inch 580 00:22:05,976 --> 00:22:07,486 with the ability to do colors. 581 00:22:09,326 --> 00:22:09,826 And, 582 00:22:10,595 --> 00:22:11,071 finally, 583 00:22:11,468 --> 00:22:12,761 with a software pipeline 584 00:22:13,610 --> 00:22:14,800 that actually, 585 00:22:16,324 --> 00:22:18,322 did not require a human in the loop. 586 00:22:18,722 --> 00:22:20,900 K? So there's pipelines ran 587 00:22:21,359 --> 00:22:22,318 while we are asleep. 588 00:22:23,037 --> 00:22:25,615 And so we speed it up also the 589 00:22:26,088 --> 00:22:27,599 the the whole process. 590 00:22:28,474 --> 00:22:30,963 Finally, in at the end of Palo the 591 00:22:31,338 --> 00:22:32,611 the Pt t project, 592 00:22:33,184 --> 00:22:34,801 we able to go from 593 00:22:36,615 --> 00:22:37,993 identifying supermarket candidates. 594 00:22:38,611 --> 00:22:40,766 Having some confidence is a good candidate through 595 00:22:40,766 --> 00:22:43,500 this color observations and getting the spectrum the 596 00:22:43,500 --> 00:22:43,980 same night. 597 00:22:44,779 --> 00:22:45,919 The spectrum usually 598 00:22:46,619 --> 00:22:48,460 requires a much larger telescope scope, which we 599 00:22:48,460 --> 00:22:50,624 didn't have you know, we only had limited 600 00:22:50,624 --> 00:22:52,372 access. We had good access but limited. 601 00:22:53,405 --> 00:22:55,472 That's what led to Pt t, and 602 00:22:55,869 --> 00:22:57,720 I was quite surprised that 603 00:22:58,429 --> 00:22:58,929 these 604 00:22:59,308 --> 00:23:00,666 engineering goals could be met. 605 00:23:01,624 --> 00:23:04,021 And I was talking with my nephew, Rohan, 606 00:23:04,341 --> 00:23:06,583 Rohan And He said, well, you should you 607 00:23:06,583 --> 00:23:08,250 should call this the automated discovery of the 608 00:23:08,250 --> 00:23:11,107 universe. And I like that. So, that that 609 00:23:11,107 --> 00:23:12,059 was the founder foundation. 610 00:23:12,789 --> 00:23:14,221 I give a talk about Pt t at 611 00:23:14,460 --> 00:23:15,733 Mit and as in the audience and. 612 00:23:17,801 --> 00:23:19,893 Anyway, that led to Z t where 613 00:23:20,285 --> 00:23:21,085 at this point, 614 00:23:21,644 --> 00:23:23,325 this was everything on steroids, 615 00:23:24,605 --> 00:23:27,025 including spectroscopy, which was done robotic. 616 00:23:28,377 --> 00:23:30,130 And so you you mentioned a figure of 617 00:23:30,130 --> 00:23:32,838 a, was it a hundred objects a year? 618 00:23:32,997 --> 00:23:35,467 Are you how how how many objects a 619 00:23:35,467 --> 00:23:38,271 year are you detecting now? Are you detecting 620 00:23:38,271 --> 00:23:40,265 a similar number, but just doing a much 621 00:23:40,265 --> 00:23:40,765 better 622 00:23:41,541 --> 00:23:42,499 job at analog loss. 623 00:23:43,455 --> 00:23:46,167 With Z etf, we probably have, I would 624 00:23:46,167 --> 00:23:46,566 say, 625 00:23:48,097 --> 00:23:51,549 how to be somewhere between 20000 to 30000 626 00:23:52,166 --> 00:23:54,320 candidates that is in our data, 627 00:23:54,814 --> 00:23:55,793 you'll find something 628 00:23:56,810 --> 00:24:00,402 plausible next to a, you know, galactic object 629 00:24:00,402 --> 00:24:01,759 goes up, then comes down, 630 00:24:03,037 --> 00:24:03,776 of which 631 00:24:04,650 --> 00:24:06,890 we only study 10 percent of them, so 632 00:24:06,890 --> 00:24:09,150 we... Were able to get the spec 633 00:24:10,009 --> 00:24:11,929 classification. So we know it's a supernova and 634 00:24:11,929 --> 00:24:13,945 we know what kind it is to a 635 00:24:13,945 --> 00:24:14,585 certain level. 636 00:24:15,144 --> 00:24:17,065 So that's about 2000 a year. So we've 637 00:24:17,065 --> 00:24:19,485 gone from a hundred to 2000 638 00:24:19,625 --> 00:24:20,125 classified. 639 00:24:21,078 --> 00:24:21,712 But probably, 640 00:24:22,267 --> 00:24:25,122 oh, certainly a 20000, maybe even 30000, not 641 00:24:25,122 --> 00:24:27,580 classified, but we know they're super because they're 642 00:24:27,580 --> 00:24:30,534 light curves that is how they behave, how 643 00:24:30,534 --> 00:24:31,091 they come up, 644 00:24:31,807 --> 00:24:33,476 have a plateau or not a plateau and 645 00:24:33,476 --> 00:24:35,328 then they decline. We know it's a super 646 00:24:35,385 --> 00:24:37,873 with a high degree of confidence or probability 647 00:24:38,009 --> 00:24:38,566 that they are. 648 00:24:40,409 --> 00:24:42,317 And you you mentioned that you've worked on 649 00:24:42,317 --> 00:24:44,860 on gamma ray bursts. You've worked on supernova. 650 00:24:45,575 --> 00:24:47,665 Do do you have a a favorite 651 00:24:48,532 --> 00:24:49,032 object 652 00:24:50,046 --> 00:24:52,835 that you've looked at during your career or 653 00:24:52,835 --> 00:24:54,588 is it just the 1 that you happen 654 00:24:54,588 --> 00:24:56,739 to be working on today that's your favorite? 655 00:24:58,430 --> 00:24:58,990 Yeah. Well, 656 00:25:00,109 --> 00:25:01,470 as Joe come to my kids says, 657 00:25:03,230 --> 00:25:05,869 I always... You know, my first 2... First 658 00:25:05,869 --> 00:25:07,444 bets were 2 rabbits and 659 00:25:07,963 --> 00:25:08,282 So... 660 00:25:08,841 --> 00:25:10,197 And then I always had a, you know, 661 00:25:10,357 --> 00:25:12,032 pits or after they died, 662 00:25:14,426 --> 00:25:15,086 and then 663 00:25:15,877 --> 00:25:17,414 I didn't have when I was a, 664 00:25:18,430 --> 00:25:19,786 grad student. But when 665 00:25:20,822 --> 00:25:22,258 you know, we had kids. They wanted to 666 00:25:22,258 --> 00:25:23,614 have pets. So I said, oh, yeah. They 667 00:25:23,614 --> 00:25:25,105 wanted a dog. I said, let's go and 668 00:25:26,100 --> 00:25:26,896 went to the pet 669 00:25:27,533 --> 00:25:29,045 shop and immediately got a rabbit. 670 00:25:31,673 --> 00:25:33,597 And then since that we've been doing of 671 00:25:33,597 --> 00:25:34,097 rescue, 672 00:25:34,471 --> 00:25:36,297 people abandoned private after the Easter. 673 00:25:37,647 --> 00:25:39,553 So I've had I know in the last 674 00:25:39,871 --> 00:25:40,982 not anymore right now. 675 00:25:41,794 --> 00:25:43,791 About 7... 0, it's 8 now, you know, 676 00:25:43,951 --> 00:25:45,969 that we rescued then. They 677 00:25:46,428 --> 00:25:48,265 they stay at some point pass away. 678 00:25:49,157 --> 00:25:50,748 It's how hard to say what's my favorite 679 00:25:50,748 --> 00:25:51,861 driver because I like them all. 680 00:25:53,293 --> 00:25:53,793 Food 681 00:25:55,043 --> 00:25:55,543 So 682 00:25:57,841 --> 00:25:58,817 I would say 683 00:25:59,428 --> 00:26:01,356 perhaps, for me, the 1 684 00:26:02,363 --> 00:26:04,132 that is in some sense of favorite 685 00:26:04,584 --> 00:26:05,084 was 686 00:26:05,789 --> 00:26:07,778 the very first discovery I made as a 687 00:26:07,778 --> 00:26:08,574 graduate student, 688 00:26:09,370 --> 00:26:10,961 working with the Dawn Ba, 689 00:26:11,836 --> 00:26:12,871 was that I received, 690 00:26:13,364 --> 00:26:14,323 radio observatory, 691 00:26:14,882 --> 00:26:17,359 and I got the first millisecond pulse. Oh, 692 00:26:17,439 --> 00:26:19,116 this is more than about 40 years ago. 693 00:26:20,409 --> 00:26:22,087 That is a a favorite because, 694 00:26:22,726 --> 00:26:23,685 a was my first, 695 00:26:24,404 --> 00:26:24,883 and b, 696 00:26:26,641 --> 00:26:28,253 it was sort of you know, I was 697 00:26:28,253 --> 00:26:30,751 there all alone set up the whole process 698 00:26:30,810 --> 00:26:31,310 and 699 00:26:31,769 --> 00:26:34,486 analyze and discovered, and it was very thrilling. 700 00:26:35,779 --> 00:26:36,279 And 701 00:26:37,773 --> 00:26:39,449 after that, you know, working with students 702 00:26:40,007 --> 00:26:41,762 we found the first brown wolf. That was 703 00:26:41,762 --> 00:26:42,320 kind of fun. 704 00:26:43,291 --> 00:26:44,881 So, you know, when you find a new 705 00:26:44,881 --> 00:26:45,915 class of object, 706 00:26:47,028 --> 00:26:49,335 there's a certain thrill knowing that you maybe 707 00:26:49,335 --> 00:26:51,417 and your students are only people in the 708 00:26:51,417 --> 00:26:52,848 world aware what this is, 709 00:26:54,199 --> 00:26:55,868 in the grand scheme of things, perhaps, it 710 00:26:55,868 --> 00:26:58,173 means nothing. But in the very small scheme 711 00:26:58,173 --> 00:26:59,842 of things size of that day or that 712 00:26:59,842 --> 00:27:01,373 month. It means a lot. 713 00:27:02,492 --> 00:27:04,830 Yeah. So I've sort of the the 714 00:27:05,688 --> 00:27:06,188 the 715 00:27:06,727 --> 00:27:10,517 focus on transient and Sand explosive events and 716 00:27:10,894 --> 00:27:12,808 is to me, this has been in the 717 00:27:12,808 --> 00:27:13,946 last roughly 718 00:27:14,324 --> 00:27:17,195 20 years with Gamma ray and Pt t 719 00:27:17,195 --> 00:27:19,005 and Z t of the 2 projects we 720 00:27:19,124 --> 00:27:19,283 us. 721 00:27:19,998 --> 00:27:21,747 But before that I've been through, you know, 722 00:27:21,906 --> 00:27:22,541 other fears, 723 00:27:23,098 --> 00:27:24,052 big instruments, 724 00:27:24,846 --> 00:27:25,880 you know, observing, 725 00:27:28,994 --> 00:27:31,140 neutron stars, black holes, that sort of stuff. 726 00:27:33,445 --> 00:27:34,875 Tri, I'd like to ask you to look 727 00:27:34,875 --> 00:27:35,375 forward 728 00:27:35,829 --> 00:27:36,862 you know, to the future. 729 00:27:37,994 --> 00:27:40,634 Bigger and better telescopes are being built? 730 00:27:41,674 --> 00:27:43,595 What what do you look forward to? Are 731 00:27:43,595 --> 00:27:44,255 there any 732 00:27:44,808 --> 00:27:47,283 ob or instruments out there that are about 733 00:27:47,283 --> 00:27:50,475 to come online that you're really interested in 734 00:27:50,475 --> 00:27:51,832 seeing the data from? 735 00:27:53,043 --> 00:27:54,078 Well, I'll... 736 00:27:55,431 --> 00:27:55,829 Oh, 737 00:27:57,103 --> 00:27:58,933 I'll again, give the answer in 2 parts. 738 00:27:59,093 --> 00:28:00,627 So the the first 1 739 00:28:01,178 --> 00:28:03,328 is this is a fantastic time to do 740 00:28:03,328 --> 00:28:04,285 astronomy. I mean, 741 00:28:05,878 --> 00:28:07,493 the instruments we're building 742 00:28:09,080 --> 00:28:09,580 are 743 00:28:09,956 --> 00:28:14,020 just have enormous capacity of information delivery. 744 00:28:15,629 --> 00:28:17,146 Just, you know, I know, like, a week 745 00:28:17,146 --> 00:28:17,465 ago, 746 00:28:19,381 --> 00:28:22,117 the European space agency, released pictures 747 00:28:22,495 --> 00:28:24,810 of the sky taken with the up euclid. 748 00:28:25,383 --> 00:28:27,372 Okay? I know they saw that. They're like 749 00:28:27,372 --> 00:28:27,872 gorgeous 750 00:28:28,247 --> 00:28:30,474 pictures, and you first look at it, and 751 00:28:30,474 --> 00:28:32,877 they actually give you the the with the 752 00:28:32,877 --> 00:28:35,663 real data as other Jpeg of its files. 753 00:28:36,300 --> 00:28:38,450 And I was looking, you know, you can 754 00:28:38,450 --> 00:28:41,334 keep zooming the like about every time you 755 00:28:41,334 --> 00:28:43,412 zoom, it's a factor of 2 it it 756 00:28:43,412 --> 00:28:44,051 mag signifies. 757 00:28:44,690 --> 00:28:46,129 I don't no I think I went about 758 00:28:46,129 --> 00:28:46,629 maybe 759 00:28:47,008 --> 00:28:49,086 10 times before I could see the pixels. 760 00:28:49,326 --> 00:28:50,285 It was just so rich. 761 00:28:50,937 --> 00:28:53,645 So a single image you know, is, like, 762 00:28:54,442 --> 00:28:57,149 few square degrees or that they're giving maybe 763 00:28:57,149 --> 00:28:58,902 a square degrees was just amazing. 764 00:29:00,035 --> 00:29:02,755 That's number 1. So the data flow, but 765 00:29:02,755 --> 00:29:04,835 the instruments is is 766 00:29:05,875 --> 00:29:06,595 exponentially growing. 767 00:29:09,407 --> 00:29:09,907 And 768 00:29:10,441 --> 00:29:10,679 so... 769 00:29:11,395 --> 00:29:12,747 And the, you know us, you know, has 770 00:29:12,747 --> 00:29:15,134 been around for about nearly 14000000000 years. 771 00:29:16,103 --> 00:29:18,490 There 10 to the 11 stars in each 772 00:29:18,490 --> 00:29:20,399 galaxy like our own, and they 10 to 773 00:29:20,399 --> 00:29:22,387 the 11 galaxy like a milky way. 774 00:29:23,199 --> 00:29:24,718 So the us has had, first of all, 775 00:29:24,797 --> 00:29:27,355 many opportunity do some very strange things and 776 00:29:27,355 --> 00:29:29,432 a very long time to cook up those 777 00:29:29,432 --> 00:29:29,672 things. 778 00:29:30,311 --> 00:29:31,530 So there's no shortage 779 00:29:31,843 --> 00:29:32,162 of 780 00:29:32,957 --> 00:29:33,912 phenomena to explore. 781 00:29:36,299 --> 00:29:38,788 That's first part. The second 1 is 782 00:29:39,098 --> 00:29:41,244 many times people think and try to just 783 00:29:41,244 --> 00:29:41,744 finish 784 00:29:42,118 --> 00:29:43,788 writing what I call as a creed, 785 00:29:45,139 --> 00:29:46,888 that, you know, bigger telescopes is better, of 786 00:29:46,888 --> 00:29:48,894 course, that is true. You know, bigger telescopes 787 00:29:48,894 --> 00:29:50,734 scope means you can study more faint. Thanks 788 00:29:50,734 --> 00:29:52,095 or you can study the bright things with 789 00:29:52,095 --> 00:29:52,974 better precision. 790 00:29:53,934 --> 00:29:54,434 However, 791 00:29:56,589 --> 00:29:58,349 I just finished this article and the title 792 00:29:58,349 --> 00:30:00,450 is something that there is more room sideways. 793 00:30:01,309 --> 00:30:04,049 By that, I mean, the l... The the 794 00:30:04,190 --> 00:30:04,690 the 795 00:30:05,483 --> 00:30:07,471 you know, the usual idea for subject is 796 00:30:07,471 --> 00:30:09,619 like a pair... There's an Apex, a Pyramid. 797 00:30:09,778 --> 00:30:11,209 You know, we build the base and we 798 00:30:11,209 --> 00:30:13,277 keep going up to the very top. Well, 799 00:30:13,436 --> 00:30:15,205 that's at the top. But when I say 800 00:30:15,205 --> 00:30:17,837 more room sideways is we can employ a 801 00:30:17,837 --> 00:30:18,895 variety of telescopes 802 00:30:19,273 --> 00:30:21,905 to study the universe. They don't... Don't... Don't 803 00:30:21,905 --> 00:30:23,420 have to be big at all actually. 804 00:30:25,432 --> 00:30:26,172 So the 805 00:30:26,550 --> 00:30:28,468 Z t and it... You know, Z was 806 00:30:28,468 --> 00:30:30,246 based on a 48 inch telescope. 807 00:30:31,680 --> 00:30:34,000 Which was commissioned in 19 49, 808 00:30:35,039 --> 00:30:37,920 and a 16 telescope commissioned in 19 72 809 00:30:37,920 --> 00:30:40,214 and for spectroscopy used the 200 inch 810 00:30:41,128 --> 00:30:42,241 commissioned in 19 50, 811 00:30:42,797 --> 00:30:43,751 also so. Okay? 812 00:30:44,625 --> 00:30:47,327 So here we are that with these old 813 00:30:47,327 --> 00:30:49,725 telescopes scope, but with new instruments, we can 814 00:30:49,725 --> 00:30:51,177 study the Scott ferocious. 815 00:30:51,788 --> 00:30:51,947 Okay? 816 00:30:53,930 --> 00:30:55,993 The number papers, Z t published, 817 00:30:56,469 --> 00:30:58,391 I was surprised. I think the team itself 818 00:30:58,391 --> 00:31:01,176 was publishing 1 every 10 days. And because 819 00:31:01,176 --> 00:31:02,848 we put the data out, the rest of 820 00:31:02,848 --> 00:31:05,236 the word was publishing for every, we published 821 00:31:05,236 --> 00:31:08,199 they're publishing 4 others using the data made 822 00:31:08,199 --> 00:31:09,577 available to them. So 823 00:31:10,596 --> 00:31:11,895 so there's many 824 00:31:12,593 --> 00:31:13,712 different ways. 825 00:31:14,111 --> 00:31:15,490 You can study the universe 826 00:31:15,965 --> 00:31:17,825 It doesn't have to with the larger sales. 827 00:31:19,725 --> 00:31:21,565 And there's no shortage of phenomena. 828 00:31:22,205 --> 00:31:23,884 I would say absolutely no shortage. 829 00:31:26,535 --> 00:31:27,912 You know, we could 830 00:31:29,245 --> 00:31:29,404 be, 831 00:31:30,919 --> 00:31:31,578 tell me 832 00:31:32,273 --> 00:31:34,360 anything that fast it to you a you 833 00:31:34,360 --> 00:31:36,351 know, you know, or what... Ask me a 834 00:31:36,351 --> 00:31:37,148 question and then about... 835 00:31:38,184 --> 00:31:40,574 Oh, maybe about 30 seconds I can come 836 00:31:40,574 --> 00:31:41,609 with a project for that. 837 00:31:42,819 --> 00:31:44,259 So I know it doesn't... You know I'm 838 00:31:44,259 --> 00:31:45,859 not... I'm not trying to be specific for 839 00:31:45,859 --> 00:31:47,880 a simple reason. I really want, 840 00:31:48,579 --> 00:31:51,872 young people to understand that there is no 841 00:31:51,872 --> 00:31:53,945 set way of approaching science. 842 00:31:55,381 --> 00:31:57,875 This idea, you know, I would say somewhat 843 00:31:58,092 --> 00:31:58,592 popular 844 00:31:59,049 --> 00:32:00,006 by high energy, 845 00:32:00,976 --> 00:32:03,121 physics switch has been, you know, physics in 846 00:32:03,121 --> 00:32:05,106 general has been a race, perhaps the most 847 00:32:05,106 --> 00:32:06,774 successful part of our science, 848 00:32:07,886 --> 00:32:08,386 sciences, 849 00:32:09,094 --> 00:32:10,927 you know, you had to build bigger accelerators 850 00:32:10,927 --> 00:32:12,840 to find things. Yes. That is... But that's 851 00:32:12,840 --> 00:32:14,594 just 1 particular approach, 852 00:32:15,631 --> 00:32:17,087 in contrast, astronomy 853 00:32:17,558 --> 00:32:19,011 and biology geology. 854 00:32:19,782 --> 00:32:21,315 We can do many things 855 00:32:22,483 --> 00:32:24,231 across the board, and you don't know until 856 00:32:24,231 --> 00:32:26,217 you're done whether which is a more important 857 00:32:26,217 --> 00:32:26,375 thing. 858 00:32:27,821 --> 00:32:30,128 And and finally, Sri, what? I mean, it 859 00:32:30,128 --> 00:32:31,321 sounds to me like, 860 00:32:32,196 --> 00:32:33,946 you think this is a golden age. 861 00:32:34,517 --> 00:32:36,580 Of astronomy. And I'm guessing that you would 862 00:32:36,580 --> 00:32:40,071 encourage young people to to become interested in 863 00:32:40,071 --> 00:32:41,999 it, and, you know, maybe do a Phd 864 00:32:42,134 --> 00:32:44,928 or and and become a an astronomer. What 865 00:32:44,928 --> 00:32:48,740 advice would you give to early career people 866 00:32:48,740 --> 00:32:51,777 or students who are interested in following in 867 00:32:51,777 --> 00:32:52,575 your footsteps. 868 00:32:53,852 --> 00:32:55,688 Yeah. I would say, definitely, there's a golden 869 00:32:55,688 --> 00:32:57,784 age for astronomy perhaps biology. 870 00:32:58,641 --> 00:33:01,989 Any these... The fields which require data, they're 871 00:33:01,989 --> 00:33:03,044 exploding because 872 00:33:03,416 --> 00:33:06,509 the sensors have increased. Believe the computer increased 873 00:33:06,509 --> 00:33:09,384 and those fields are producing far more data. 874 00:33:09,702 --> 00:33:10,758 I our data 875 00:33:11,292 --> 00:33:12,746 exponentially larger than the 876 00:33:13,199 --> 00:33:14,256 number of users. 877 00:33:15,600 --> 00:33:18,169 And that's always means to me 878 00:33:18,545 --> 00:33:20,375 an opportunity for a young person to get 879 00:33:20,375 --> 00:33:22,205 in with fresh perspective. 880 00:33:22,699 --> 00:33:24,537 You know, someone like me has been around 881 00:33:24,537 --> 00:33:26,774 doing research for more than 40 years. I'll 882 00:33:26,774 --> 00:33:28,612 be very good. I'll be very cunning in 883 00:33:28,612 --> 00:33:31,260 doing things that I can. But I lag 884 00:33:31,260 --> 00:33:33,011 the fresh perspective. So this is a very 885 00:33:33,011 --> 00:33:35,478 good time to be in this data which 886 00:33:35,478 --> 00:33:35,796 fields. 887 00:33:36,831 --> 00:33:39,537 And what I... The main advice I'll give 888 00:33:39,537 --> 00:33:41,299 to a young person is, 889 00:33:44,475 --> 00:33:46,221 figure out who you are, not what do 890 00:33:46,221 --> 00:33:48,700 you want to be. Okay? Yeah. It's okay 891 00:33:48,700 --> 00:33:50,291 to say, oh, I want to be an 892 00:33:50,291 --> 00:33:51,906 eye einstein, which is, you know, largely 893 00:33:52,440 --> 00:33:55,146 very cerebral here did go work. Okay? And 894 00:33:55,146 --> 00:33:56,658 it's a nice thing. Know, I einstein. So 895 00:33:56,658 --> 00:33:57,056 famous. 896 00:33:57,706 --> 00:33:59,530 He sat in the patent office and figured 897 00:33:59,530 --> 00:34:00,957 out this and that and so. I mean, 898 00:34:01,036 --> 00:34:03,414 it's like amazing. Okay. I don't even understand 899 00:34:03,414 --> 00:34:04,762 how that even could happen. 900 00:34:05,494 --> 00:34:07,569 Okay. Much easier to understand someone like myself. 901 00:34:07,729 --> 00:34:10,363 Yeah. You know, you collect data, You see 902 00:34:10,363 --> 00:34:13,018 patterns. You write papers. It seems more 903 00:34:13,476 --> 00:34:13,715 clear. 904 00:34:14,606 --> 00:34:17,382 But don't confuse what he aspire to be 905 00:34:17,382 --> 00:34:20,475 to what you can do. And it's good 906 00:34:20,475 --> 00:34:21,744 to say, yeah, I can do a lot, 907 00:34:21,903 --> 00:34:24,012 but I think we all have 908 00:34:24,789 --> 00:34:26,008 some talent in 909 00:34:26,466 --> 00:34:27,983 directions that we need to know what it 910 00:34:27,983 --> 00:34:30,138 is. And I know that I don't have 911 00:34:30,138 --> 00:34:32,628 talent in some other directions or let me 912 00:34:32,628 --> 00:34:34,143 say it comes more slowly. 913 00:34:34,940 --> 00:34:37,014 So for example, you ought been astronomer. There 914 00:34:37,014 --> 00:34:38,391 are roughly 3 categories. 915 00:34:38,769 --> 00:34:40,763 Either you can be a adhere that is 916 00:34:40,763 --> 00:34:41,661 you sort of 917 00:34:42,134 --> 00:34:44,451 do put a lot of time, understand the 918 00:34:44,451 --> 00:34:44,691 physics, 919 00:34:45,330 --> 00:34:47,886 especially mathematics you should have really good skills 920 00:34:47,886 --> 00:34:48,980 and mathematics though 921 00:34:49,977 --> 00:34:52,370 equations and so on. And then you look 922 00:34:52,370 --> 00:34:55,242 at the observations and try to make sense 923 00:34:55,242 --> 00:34:56,175 of it by 924 00:34:56,690 --> 00:34:58,987 applying physics to it. Okay. That's 1 kind. 925 00:34:59,701 --> 00:35:01,760 At the other end is you build Gizmos 926 00:35:01,760 --> 00:35:03,107 like I do, you say, okay. 927 00:35:03,839 --> 00:35:05,437 You look at the world So, what is 928 00:35:05,437 --> 00:35:07,754 it I can do with the technology today. 929 00:35:08,793 --> 00:35:09,293 And 930 00:35:09,911 --> 00:35:11,644 that gizmo more... In order to know what 931 00:35:11,844 --> 00:35:13,837 kind of build how to understand the the 932 00:35:13,837 --> 00:35:16,229 large landscape and say, okay. I won't do 933 00:35:16,229 --> 00:35:18,223 this. And you can connect very poor choices. 934 00:35:18,382 --> 00:35:19,817 If we don't understand the landscape. 935 00:35:20,216 --> 00:35:20,296 Okay? 936 00:35:21,899 --> 00:35:23,882 So it's not just like, big Gizmos and 937 00:35:23,882 --> 00:35:26,024 things will happen. You to build sensible Gizmos 938 00:35:26,024 --> 00:35:27,214 and then things will happen. 939 00:35:28,023 --> 00:35:30,961 Okay? And then another person could be what 940 00:35:30,961 --> 00:35:32,732 you call roughly a model? 941 00:35:33,106 --> 00:35:35,250 Okay, sort of in between a theorist and 942 00:35:35,250 --> 00:35:35,488 observer. 943 00:35:36,456 --> 00:35:38,758 This could be people who do numerical, it 944 00:35:38,758 --> 00:35:40,846 they they take the equations in theory 945 00:35:41,378 --> 00:35:43,815 and apply that in a computer, and that's 946 00:35:44,013 --> 00:35:45,679 become a very big field it's called numerical 947 00:35:45,679 --> 00:35:46,473 astro physics. 948 00:35:47,901 --> 00:35:49,591 I... You need the rough 3 categories, 949 00:35:50,519 --> 00:35:51,019 and 950 00:35:51,329 --> 00:35:52,769 The first thing a student has to do 951 00:35:52,769 --> 00:35:54,049 be a young person has to do is 952 00:35:54,049 --> 00:35:54,609 who you are? 953 00:35:55,730 --> 00:35:57,089 Are you a, b or c, 954 00:35:57,650 --> 00:35:59,945 not who you want to be? Okay. Have 955 00:36:00,624 --> 00:36:02,541 so you to try those things and see... 956 00:36:02,702 --> 00:36:05,498 And feel naturally where you think your inclination 957 00:36:05,498 --> 00:36:07,815 is and where you're growing fast. 958 00:36:09,106 --> 00:36:11,572 The second thing is you confidence, I would 959 00:36:11,572 --> 00:36:11,811 say, 960 00:36:13,164 --> 00:36:14,141 you to confidence, 961 00:36:16,506 --> 00:36:17,461 in the following sense, 962 00:36:18,112 --> 00:36:18,907 it's easy. 963 00:36:20,100 --> 00:36:22,485 Few people are just over confident, which is 964 00:36:22,485 --> 00:36:23,519 not useful because, 965 00:36:26,237 --> 00:36:28,942 it you, you know, but actually it's easiest 966 00:36:28,942 --> 00:36:30,851 to find out if you're very all confident, 967 00:36:31,249 --> 00:36:33,238 you set forth on of Voyage and it 968 00:36:33,238 --> 00:36:34,431 the incident is disaster, 969 00:36:34,924 --> 00:36:36,521 Next time we set forth ends in a 970 00:36:36,521 --> 00:36:38,117 disaster. So after a while you'll figure out. 971 00:36:38,596 --> 00:36:40,990 So actually, being over confident is something that, 972 00:36:41,070 --> 00:36:43,465 you know, reality will eventually inform you. 973 00:36:44,116 --> 00:36:46,259 Many people are actually have the opposite problem. 974 00:36:46,418 --> 00:36:48,958 They is shy about themselves, and they don't 975 00:36:48,958 --> 00:36:51,102 want to push and understand their limits. 976 00:36:53,191 --> 00:36:55,686 And for that, you got to undergo failure 977 00:36:55,984 --> 00:36:57,262 and resilience. Okay. 978 00:36:58,299 --> 00:36:59,816 I don't know how to teach this, because 979 00:36:59,976 --> 00:37:02,619 I now I'd wise, oh, is it 31 980 00:37:02,619 --> 00:37:03,256 grad students. 981 00:37:04,052 --> 00:37:05,804 Mentored maybe 52 post stocks. 982 00:37:06,441 --> 00:37:08,192 It... This has been the hard 1 to 983 00:37:08,192 --> 00:37:10,036 actually try to to teach. 984 00:37:11,705 --> 00:37:14,169 But I think I've been moderately successful, 985 00:37:14,725 --> 00:37:16,077 at least in few cases. 986 00:37:17,681 --> 00:37:19,589 And in most cases certainly by the end 987 00:37:19,589 --> 00:37:20,782 of their, you know, stay, 988 00:37:21,815 --> 00:37:23,723 they do leave better off than they started. 989 00:37:24,041 --> 00:37:24,859 Yeah. So 990 00:37:26,363 --> 00:37:28,758 the the 1 thing I would add advocate... 991 00:37:29,157 --> 00:37:31,312 1 trick advocate to a young person is, 992 00:37:32,669 --> 00:37:35,636 step outside your body and look at yourself 993 00:37:35,636 --> 00:37:36,912 and what happened during the day. 994 00:37:37,949 --> 00:37:39,305 When I was young, I do that all 995 00:37:39,305 --> 00:37:40,581 the time. End of the day hey, I 996 00:37:40,581 --> 00:37:42,974 would sort of... It's a pretend exercise. You're 997 00:37:42,974 --> 00:37:44,465 you're sitting there, You said, okay. I'm gonna 998 00:37:44,505 --> 00:37:46,978 step outside my body. And once you step 999 00:37:46,978 --> 00:37:49,132 outside, you look at this person, I you 1000 00:37:49,451 --> 00:37:51,046 surgical, not with any emotions. 1001 00:37:51,859 --> 00:37:53,076 What are the things that 1002 00:37:53,532 --> 00:37:55,865 this person did write optimal 1003 00:37:56,401 --> 00:37:58,871 strategic today. And most importantly, what are the 1004 00:37:58,871 --> 00:38:01,122 things in red respect would have been done 1005 00:38:01,122 --> 00:38:01,921 better and so on. 1006 00:38:03,439 --> 00:38:05,457 And this sort of a surgical analysis 1007 00:38:06,555 --> 00:38:07,010 will 1008 00:38:07,369 --> 00:38:09,068 help you improve, 1009 00:38:10,086 --> 00:38:12,483 in a search very business like way. So, 1010 00:38:13,842 --> 00:38:15,780 you to learn how to suspend ego 1011 00:38:16,174 --> 00:38:18,568 on analyzing yourself. But at the same time 1012 00:38:18,568 --> 00:38:21,919 of confidence requires having confidence in yourself, which 1013 00:38:21,919 --> 00:38:24,164 is sort of, like, having some stake in 1014 00:38:24,164 --> 00:38:27,340 yourself. So life is always, you know, understanding 1015 00:38:27,340 --> 00:38:29,325 the 2 extremities and trying to learn to 1016 00:38:29,325 --> 00:38:31,945 operate that. So to summarize, I tell a 1017 00:38:31,945 --> 00:38:32,501 young person, 1018 00:38:33,073 --> 00:38:34,587 stone is a fantastic field. You want to 1019 00:38:34,587 --> 00:38:35,144 do research, 1020 00:38:36,339 --> 00:38:38,729 come. This is things are really happening in 1021 00:38:38,729 --> 00:38:39,526 a very big way. 1022 00:38:41,690 --> 00:38:43,521 And bring your fresh perspective, 1023 00:38:44,635 --> 00:38:47,818 bring energy, you got to work hard, no 1024 00:38:47,818 --> 00:38:49,171 excuse on that. If you don't work hard, 1025 00:38:50,063 --> 00:38:52,059 you know, there are other people who want 1026 00:38:52,059 --> 00:38:53,416 to work hard, and, you know, who will 1027 00:38:53,416 --> 00:38:54,693 get the job and so on. 1028 00:38:56,449 --> 00:38:58,365 And develop confidence yourself, 1029 00:38:59,414 --> 00:39:00,050 analyze yourself, 1030 00:39:00,766 --> 00:39:03,707 and improve. Life is a process of continual 1031 00:39:03,707 --> 00:39:05,217 improvement, continual education, 1032 00:39:06,251 --> 00:39:07,546 and continual curiosity. 1033 00:39:08,807 --> 00:39:11,342 Well, that's great, Sure. That's that's fantastic advice. 1034 00:39:11,739 --> 00:39:14,195 And thanks again. Thanks so much for coming 1035 00:39:14,195 --> 00:39:14,987 on the podcast. 1036 00:39:15,478 --> 00:39:15,978 And 1037 00:39:16,666 --> 00:39:17,141 congratulations 1038 00:39:17,538 --> 00:39:19,122 for winning the sharp price. 1039 00:39:20,152 --> 00:39:21,262 Oh, thanks, Har. 1040 00:39:30,766 --> 00:39:33,636 Scott T is professor Em am at the 1041 00:39:34,114 --> 00:39:37,701 Institute for advanced study in Princeton, New Jersey. 1042 00:39:38,434 --> 00:39:39,891 He's made important 1043 00:39:40,507 --> 00:39:44,277 contributions to our understanding of the formation and 1044 00:39:44,575 --> 00:39:46,989 evolution of a wide range of astronomical 1045 00:39:47,447 --> 00:39:47,846 systems. 1046 00:39:48,734 --> 00:39:49,527 Including planets, 1047 00:39:50,082 --> 00:39:51,772 black holes, and galaxies. 1048 00:39:52,699 --> 00:39:55,792 He served as chair of the selection committee, 1049 00:39:56,284 --> 00:39:57,980 for the 20 24 1050 00:39:58,039 --> 00:39:59,634 shaw prize in astronomy, 1051 00:40:00,112 --> 00:40:02,346 and he joins me down the line from 1052 00:40:02,346 --> 00:40:05,775 the Us to talk about this year's Lau. 1053 00:40:14,282 --> 00:40:17,007 So, Scott, can you highlight some of Ko 1054 00:40:17,540 --> 00:40:18,040 achievements 1055 00:40:18,653 --> 00:40:21,434 that led the selection committee to award him 1056 00:40:21,434 --> 00:40:21,991 the prize. 1057 00:40:23,119 --> 00:40:26,079 C achievements have been focused on the area 1058 00:40:26,079 --> 00:40:28,739 of time domain astronomy that is on 1059 00:40:29,359 --> 00:40:30,639 on trying to, 1060 00:40:31,760 --> 00:40:32,260 identify 1061 00:40:32,813 --> 00:40:33,313 astronomical 1062 00:40:33,768 --> 00:40:35,996 events or objects that only last for a 1063 00:40:35,996 --> 00:40:39,019 short time. This is a very challenging area 1064 00:40:39,019 --> 00:40:41,747 of astronomy because you have to sift through 1065 00:40:42,217 --> 00:40:43,172 huge amounts of, 1066 00:40:44,206 --> 00:40:45,422 huge amounts of data 1067 00:40:45,956 --> 00:40:47,172 to try to isolate, 1068 00:40:48,581 --> 00:40:50,625 a, single event that may only last 1069 00:40:51,141 --> 00:40:52,650 for a fraction of a second. 1070 00:40:53,841 --> 00:40:55,032 Within that area, 1071 00:40:56,065 --> 00:40:56,382 his, 1072 00:40:57,574 --> 00:40:59,718 the crown achievement of his career, 1073 00:41:00,449 --> 00:41:03,020 has been the development of 2 surveys, 1074 00:41:04,193 --> 00:41:06,127 the, Palo transient 1075 00:41:06,902 --> 00:41:09,292 factory in the Wiki transient facility, 1076 00:41:10,024 --> 00:41:13,050 that has been purpose built to find, 1077 00:41:14,005 --> 00:41:16,018 short duration transient events 1078 00:41:17,271 --> 00:41:17,748 in that, 1079 00:41:18,799 --> 00:41:19,299 area, 1080 00:41:20,478 --> 00:41:22,016 they've been extraordinarily 1081 00:41:22,555 --> 00:41:23,055 successful. 1082 00:41:23,914 --> 00:41:26,071 So, for example, 1 of the events that 1083 00:41:26,071 --> 00:41:29,266 they felt look for is supernova in distant 1084 00:41:29,266 --> 00:41:29,766 galaxies, 1085 00:41:31,010 --> 00:41:31,906 which last 1086 00:41:32,516 --> 00:41:32,912 for, 1087 00:41:33,546 --> 00:41:34,601 periods of, 1088 00:41:35,306 --> 00:41:36,181 weeks to months. 1089 00:41:36,976 --> 00:41:39,044 They've been able to find many of these 1090 00:41:39,044 --> 00:41:40,021 within hours 1091 00:41:40,396 --> 00:41:42,861 of the time the explosion first occurs. 1092 00:41:43,671 --> 00:41:46,158 And have contributed a significant fraction 1093 00:41:46,611 --> 00:41:49,472 of all of the, Supernova that have been 1094 00:41:49,472 --> 00:41:50,289 discovered recently. 1095 00:41:52,031 --> 00:41:54,418 And and, Scott, 1 thing that struck me. 1096 00:41:54,577 --> 00:41:56,565 I mean, I'm not an astronomer, but when 1097 00:41:56,724 --> 00:41:58,890 I looked at the the sort of broad 1098 00:41:58,890 --> 00:42:02,876 range of object types that that he's studied 1099 00:42:02,876 --> 00:42:05,369 and also, you know, some of the amazing 1100 00:42:05,586 --> 00:42:06,086 instruments 1101 00:42:06,398 --> 00:42:08,148 that he's helped develop. 1102 00:42:08,943 --> 00:42:10,534 You know, to me, that that seemed like 1103 00:42:10,534 --> 00:42:14,431 a very broad and interesting career so far. 1104 00:42:14,924 --> 00:42:17,099 I mean, is is that a reasonable, 1105 00:42:18,194 --> 00:42:20,746 way to describe what what he's done, you 1106 00:42:20,746 --> 00:42:23,139 know, sort of the length and breadth of 1107 00:42:23,139 --> 00:42:23,777 his research? 1108 00:42:25,228 --> 00:42:26,503 Very very much so, 1109 00:42:27,300 --> 00:42:28,119 K Ka 1110 00:42:28,655 --> 00:42:30,011 has been interested in, 1111 00:42:30,808 --> 00:42:32,801 almost all areas of astronomy. 1112 00:42:33,534 --> 00:42:34,094 1 of the, 1113 00:42:35,771 --> 00:42:39,607 really remarkable features of the facilities that he's 1114 00:42:39,607 --> 00:42:40,107 built 1115 00:42:40,566 --> 00:42:41,765 has been there 1116 00:42:43,612 --> 00:42:46,021 discoveries over a wide range of 1117 00:42:47,032 --> 00:42:48,464 astronomy, everything from, 1118 00:42:49,751 --> 00:42:49,910 of, 1119 00:42:50,704 --> 00:42:53,643 binary stars with orbital periods as short a 1120 00:42:53,643 --> 00:42:54,382 few hours 1121 00:42:54,994 --> 00:42:55,232 to, 1122 00:42:56,265 --> 00:42:58,751 exploding store stars at distant galaxies, 1123 00:42:59,777 --> 00:43:00,277 to 1124 00:43:00,735 --> 00:43:02,011 solar system objects, 1125 00:43:04,882 --> 00:43:07,355 Cl county has been interested in in almost 1126 00:43:07,355 --> 00:43:08,791 all areas of astronomy. 1127 00:43:09,283 --> 00:43:11,368 And although the award was focused 1128 00:43:12,057 --> 00:43:15,068 on his work and time domain astronomy. He's 1129 00:43:15,068 --> 00:43:16,019 also made 1130 00:43:16,669 --> 00:43:17,486 other major 1131 00:43:17,939 --> 00:43:19,050 contributions, for example, 1132 00:43:20,162 --> 00:43:21,376 he had his collaborators 1133 00:43:22,147 --> 00:43:24,076 discovered the first really 1134 00:43:24,846 --> 00:43:25,346 persuasive 1135 00:43:26,447 --> 00:43:26,685 and, 1136 00:43:27,478 --> 00:43:30,727 unique brown dwarf, stars intermediate between, 1137 00:43:32,075 --> 00:43:32,947 stars and planets. 1138 00:43:33,759 --> 00:43:34,398 And although, 1139 00:43:35,037 --> 00:43:37,833 and and so the the award partly represented, 1140 00:43:38,632 --> 00:43:39,611 his overall 1141 00:43:39,990 --> 00:43:42,322 contribution to astronomy, although those have been focused 1142 00:43:42,322 --> 00:43:43,840 on time domain astronomy. 1143 00:43:45,039 --> 00:43:47,596 And in terms of his legacy, I mean, 1144 00:43:47,756 --> 00:43:49,210 I know it may maybe it's a too 1145 00:43:49,210 --> 00:43:50,569 early to talk about that. 1146 00:43:51,130 --> 00:43:54,329 But because my understanding is that he's he's 1147 00:43:54,329 --> 00:43:55,469 still actively 1148 00:43:55,849 --> 00:43:56,250 working. 1149 00:43:56,823 --> 00:43:59,764 But what... I mean, what influence so far 1150 00:43:59,764 --> 00:44:03,659 has he had on modern astronomy? He... You 1151 00:44:03,659 --> 00:44:05,511 know, would he be the sort of astronomer 1152 00:44:05,567 --> 00:44:08,677 that that many astronomers were would have heard 1153 00:44:08,677 --> 00:44:11,692 of, you know, that young astronomers would aspire 1154 00:44:11,692 --> 00:44:12,405 to be like. 1155 00:44:14,407 --> 00:44:16,237 Well, I can't I can't speak for the 1156 00:44:16,237 --> 00:44:18,487 young astronomers, of course, but 1157 00:44:19,896 --> 00:44:22,371 and it it probably is early to speak 1158 00:44:22,371 --> 00:44:23,268 about his legacy. 1159 00:44:24,275 --> 00:44:26,442 His legacy is particularly complicated 1160 00:44:26,973 --> 00:44:27,425 because 1161 00:44:27,782 --> 00:44:30,565 in the next year or 2 the ruben 1162 00:44:30,565 --> 00:44:31,518 telescope will, 1163 00:44:32,155 --> 00:44:32,870 come online. 1164 00:44:33,506 --> 00:44:36,311 Its focus is on time domain astronomy. 1165 00:44:37,098 --> 00:44:37,598 And 1166 00:44:38,132 --> 00:44:40,519 because it's a much bigger, much more expensive, 1167 00:44:41,155 --> 00:44:41,655 telescope, 1168 00:44:42,826 --> 00:44:43,144 than, 1169 00:44:44,034 --> 00:44:45,492 than Ko telescopes, 1170 00:44:46,030 --> 00:44:48,424 it has the potential to discover much more. 1171 00:44:49,063 --> 00:44:49,781 But I think, 1172 00:44:51,058 --> 00:44:52,356 C work 1173 00:44:52,748 --> 00:44:55,232 has to a large extent paved the way 1174 00:44:55,367 --> 00:44:57,295 for the the Ruben telescope. 1175 00:44:57,827 --> 00:45:00,208 And many of the problems that he's had 1176 00:45:00,208 --> 00:45:01,025 to solve 1177 00:45:01,494 --> 00:45:02,314 have been 1178 00:45:03,012 --> 00:45:05,409 our our problems that the ruben telescope is 1179 00:45:05,409 --> 00:45:07,088 is going to have to solve as well. 1180 00:45:07,807 --> 00:45:09,425 I think 1 of the really 1181 00:45:09,898 --> 00:45:11,515 important features of his legacy 1182 00:45:12,052 --> 00:45:13,328 has been the 1183 00:45:15,641 --> 00:45:16,460 the democrat 1184 00:45:16,917 --> 00:45:17,635 of science, 1185 00:45:19,644 --> 00:45:20,144 Cl, 1186 00:45:22,035 --> 00:45:22,535 telescopes, 1187 00:45:23,630 --> 00:45:26,659 don't save the data. It's not analyzed first 1188 00:45:26,659 --> 00:45:27,376 by his group. 1189 00:45:27,949 --> 00:45:30,336 It goes through an automated pipeline and then 1190 00:45:30,336 --> 00:45:31,393 it's made available 1191 00:45:31,848 --> 00:45:34,634 over an alert system to astronomers around the 1192 00:45:34,634 --> 00:45:35,032 world. 1193 00:45:35,763 --> 00:45:36,320 And so, 1194 00:45:36,958 --> 00:45:39,050 Ko has been 1 of the leaders 1195 00:45:39,665 --> 00:45:40,643 in democrat 1196 00:45:41,337 --> 00:45:43,487 the study of time domain astronomy. 1197 00:45:44,139 --> 00:45:45,335 And, making, 1198 00:45:45,813 --> 00:45:46,212 really, 1199 00:45:46,770 --> 00:45:50,619 useful and unique alerts available to astronomers 1200 00:45:51,235 --> 00:45:52,112 in every country. 1201 00:45:52,924 --> 00:45:55,074 I see. And is that something Scott that 1202 00:45:55,074 --> 00:45:58,441 that you and and the selection committee members 1203 00:45:59,056 --> 00:46:00,967 considered when you made your choice? Or is 1204 00:46:00,967 --> 00:46:02,677 that just an added 1205 00:46:03,213 --> 00:46:06,880 bonus of of Cole Career that that you 1206 00:46:06,880 --> 00:46:09,431 that you can talk about his contribution there. 1207 00:46:10,722 --> 00:46:13,436 The focus of the shaw price is on, 1208 00:46:14,793 --> 00:46:15,272 rewarding 1209 00:46:17,027 --> 00:46:17,527 unique 1210 00:46:17,905 --> 00:46:21,353 contributions to astronomical knowledge and to research. So 1211 00:46:21,513 --> 00:46:23,509 I would characterize this as a bonus, 1212 00:46:25,904 --> 00:46:26,404 Cl, 1213 00:46:28,393 --> 00:46:32,463 Ko Carney approach to distributing his data has 1214 00:46:32,463 --> 00:46:32,862 made it, 1215 00:46:34,618 --> 00:46:37,107 has has been a real asset for astronomers 1216 00:46:37,107 --> 00:46:38,565 who may not have access 1217 00:46:39,022 --> 00:46:40,719 to the biggest telescopes, 1218 00:46:42,213 --> 00:46:42,713 and 1219 00:46:44,378 --> 00:46:46,443 we think that's AAA 1220 00:46:46,443 --> 00:46:47,078 great addition. 1221 00:46:47,952 --> 00:46:49,857 We think the, you know, the the shop 1222 00:46:49,857 --> 00:46:51,151 price is intended 1223 00:46:52,177 --> 00:46:52,735 to be, 1224 00:46:53,531 --> 00:46:56,398 rewarding people who have an international impact. And 1225 00:46:56,398 --> 00:46:58,651 this is 1 unique way in which Ko 1226 00:46:59,186 --> 00:47:00,324 really has had 1227 00:47:00,874 --> 00:47:02,231 an impact around the world. 1228 00:47:03,508 --> 00:47:05,344 Well, that's great, Scott. Thanks so much for 1229 00:47:05,344 --> 00:47:07,739 coming on the podcast and talking to me 1230 00:47:07,739 --> 00:47:10,869 about the winner of this year's shop prize 1231 00:47:10,869 --> 00:47:11,670 and astronomy. 1232 00:47:12,150 --> 00:47:12,789 My pleasure. 1233 00:47:22,312 --> 00:47:23,986 I'm afraid that's all the time we have 1234 00:47:23,986 --> 00:47:25,124 for this week's podcast. 1235 00:47:25,501 --> 00:47:28,804 Thanks to Sri Cool Carney, and Scott T 1236 00:47:28,860 --> 00:47:31,800 for joining me today. And a special thanks 1237 00:47:31,800 --> 00:47:33,469 to our producer Fred Isles. 1238 00:47:34,423 --> 00:47:37,402 This episode is sponsored by the Shaw prize 1239 00:47:37,698 --> 00:47:39,949 foundation. The Shaw prize honors 1240 00:47:40,324 --> 00:47:41,996 individuals regardless of race, 1241 00:47:42,712 --> 00:47:43,212 nationality, 1242 00:47:43,826 --> 00:47:47,981 gender, and religious belief. Who are currently active 1243 00:47:47,981 --> 00:47:51,270 in their respective fields and who have recently 1244 00:47:51,487 --> 00:47:51,987 achieved 1245 00:47:52,523 --> 00:47:54,456 distinguished and significant 1246 00:47:54,833 --> 00:47:55,333 advances. 1247 00:47:56,045 --> 00:47:57,025 Who have made 1248 00:47:57,405 --> 00:47:57,905 outstanding 1249 00:47:58,605 --> 00:48:01,105 contributions in academic and scientific 1250 00:48:01,565 --> 00:48:02,704 research or 1251 00:48:03,164 --> 00:48:06,956 applications or who in other domains have achieved 1252 00:48:07,176 --> 00:48:07,575 excellence. 1253 00:48:08,295 --> 00:48:11,272 The shop rise is dedicated to furthering 1254 00:48:11,891 --> 00:48:12,870 societal progress 1255 00:48:13,661 --> 00:48:17,427 enhancing quality of life had enriching humanity's 1256 00:48:18,360 --> 00:48:18,860 spiritual 1257 00:48:19,635 --> 00:48:19,794 civilization. 1258 00:48:22,598 --> 00:48:24,615 There will be no weekly podcast 1259 00:48:24,993 --> 00:48:27,148 next week on the fourth of July. 1260 00:48:28,026 --> 00:48:30,501 Instead, you can tune in on the second 1261 00:48:30,501 --> 00:48:34,030 of July for the first installment of physics 1262 00:48:34,030 --> 00:48:34,829 world live, 1263 00:48:35,469 --> 00:48:38,025 which will focus on quantum sensors. 1264 00:48:39,154 --> 00:48:41,380 Featuring a panel of experts in the field. 1265 00:48:41,858 --> 00:48:45,140 This live event will explore the extraordinary 1266 00:48:45,913 --> 00:48:47,582 capabilities of quantum sensors. 1267 00:48:48,154 --> 00:48:50,564 And look at how they could benefit humanity 1268 00:48:50,860 --> 00:48:52,076 and shape our 1269 00:48:52,452 --> 00:48:53,486 understanding of the world. 1270 00:48:54,361 --> 00:48:56,431 You can find out more on the Physics 1271 00:48:56,510 --> 00:49:00,417 World website. Just click on the Physics world 1272 00:49:00,417 --> 00:49:03,433 live tab near the top of the homepage.