GCN Circular 27213
Subject
LIGO/Virgo S200224ca: No counterpart candidates in KAIT observations
Event
Date
2020-02-25T23:06:59Z (6 years ago)
From
Weikang Zheng at UC Berkeley <weikang@berkeley.edu>
Sergiy Vasylyev, Benjamin E. Stahl, Yukei Murakami, Andrew Hoffman,
James Sunseri, Keto D. Zhang, Shaunak Modak, WeiKang Zheng,
and Alexei V. Filippenko (UC Berkeley) report on behalf of
the Lick/KAIT GW follow-up team:
The 0.76-m Katzman Automatic Imaging Telescope (KAIT), located at
Lick Observatory, observed the 90% region of the gravitational-wave
event S200224ca (GCN 27184) detected by LIGO/Virgo. More than
one thousand galaxies were selected from the Glade catalog V1.0
(Dalya et al., 2018, MNRAS, 479, 2374; http://aquarius.elte.hu/glade/)
according to their priority score. KAIT observed 77 of them based on
their priority scores and elevation visibility, with each clear-filter
exposure time being 60 s. The first image was taken at 05:01:26, Feb.
25th UT, about 6.7 hours after the trigger, and the last image at
09:29:37 UT. Our typical limiting mag is 19.0. No viable counterparts
were identified and the analysis is ongoing. A full list of galaxies
observed by KAIT is given below.
GladeID UT(Feb25) RA_J2000 Dec_J2000
-----------------------------------------------
G0673461 05:01:26 10:44:53.496 +12:35:05.892
G0698936 05:03:45 10:46:08.2543 +12:36:58.5792
G0629402 05:04:52 10:46:19.801 +12:37:19.56
G0806101 05:06:03 10:46:38.9429 +11:45:55.1124
G0518983 05:07:12 10:47:22.1998 +12:43:49.764
G0165487 05:08:21 10:48:17.6659 +13:54:41.58
G0400195 05:11:48 10:50:23.4156 +13:48:52.2252
G0259691 05:12:57 10:50:42.0482 +12:56:50.2152
G0782778 05:16:27 10:51:08.6683 +13:50:53.7324
G0654615 05:17:37 10:51:09.4445 +08:43:32.2752
G0679827 05:18:46 10:51:11.2975 +10:38:36.2796
G0787037 05:19:56 10:51:16.5161 +11:51:47.2824
G0619835 05:21:08 10:51:19.9915 +11:49:29.28
G0591424 05:22:17 10:51:29.4984 +10:41:08.4408
G0669021 05:26:59 10:51:43.3375 +10:45:24.4728
G0200654 05:28:09 10:51:46.8823 +08:46:31.476
G0583050 05:29:18 10:51:59.0551 +12:12:55.4868
G0556324 05:30:28 10:52:11.4074 +12:17:48.462
G1138356 05:31:37 10:52:32.9772 +10:36:20.5128
G0660070 05:32:46 10:52:48.241 +10:41:31.4772
G0626622 05:33:56 10:52:49.4347 +12:07:44.472
G0787922 05:35:05 10:52:59.4288 +10:12:38.772
G0628137 05:45:32 10:53:02.8565 +11:31:16.7772
G0296593 05:46:41 10:53:03.7097 +09:37:24.7764
G0709189 05:47:51 10:53:53.7487 +12:37:21.27
G0619660 05:49:00 10:54:09.1882 +12:33:24.2856
G0749789 05:50:09 10:54:17.19 +10:48:55.7316
G0841361 05:51:19 10:54:17.6844 +09:18:30.7332
G0828471 05:52:28 10:54:49.2773 +09:11:04.362
G0884104 05:53:37 10:54:59.8829 +09:11:26.3724
G1295231 05:54:46 10:55:00.8275 +12:02:53.3724
G0565461 05:55:56 10:55:23.4559 +11:18:59.256
G0549630 05:57:05 10:55:31.9044 +08:50:49.2648
G0093456 05:58:15 10:55:36.1524 +08:23:18.2688
G0569013 05:59:24 10:55:38.1408 +11:00:20.268
G0623088 06:00:34 10:55:53.6388 +15:20:27.3624
G0790896 06:01:43 10:56:06.8554 +10:58:22.6344
G0608596 06:02:53 10:56:15.487 +09:45:15.6168
G0280245 06:04:02 10:56:17.2303 +09:33:57.384
G1005344 06:05:16 10:56:39.4006 +07:07:20.4168
G0602699 06:06:25 10:56:44.0772 +09:45:32.4144
G0624595 06:07:34 10:56:44.1686 +07:09:04.4172
G1069807 06:08:44 10:57:07.2144 +10:20:32.892
G1163532 06:09:53 10:57:15.2381 +07:47:24.882
G1337604 06:11:02 10:57:23.5034 +08:49:37.1748
G0827745 06:12:12 10:57:31.8641 +08:17:56.1768
G1228502 06:13:21 20:11:20.7934 +69:57:42.7824
G0565601 08:55:53 10:59:10.1551 +07:48:32.2776
G0782794 08:57:02 10:59:18.175 +12:18:46.7856
G0743465 08:58:14 10:59:33.2189 +07:41:03.3288
G0682241 08:59:24 10:59:53.4706 +08:54:27.2052
G0791401 09:00:33 11:00:12.3888 +08:46:15.7584
G0797621 09:01:40 11:00:22.716 +08:20:17.7756
G0565575 09:02:50 11:00:31.4026 +07:16:16.7808
G0632512 09:03:59 11:00:33.6144 +06:12:13.7808
G0564972 09:05:08 11:00:40.8362 +07:13:24.7512
G0549831 09:06:17 11:01:01.9373 +07:16:50.7612
G0587079 09:07:27 11:02:43.7878 +05:22:52.5036
G0745333 09:08:36 11:05:26.3818 +03:17:33.0828
G0637766 09:09:50 11:06:38.1886 -02:43:10.2684
G0644398 09:11:01 11:07:28.6963 +03:48:08.9928
G0662623 09:12:10 11:08:03.9257 +02:00:13.7196
G0610069 09:13:20 11:08:21.731 +00:49:21.72
G0687196 09:14:29 11:08:43.7292 +00:27:27.5796
G0685235 09:15:38 11:09:46.2708 +00:48:49.2624
G0489553 09:16:48 11:09:48.5266 +01:25:23.2644
G0707360 09:17:57 11:10:33.3874 -00:34:58.2888
G0711373 09:19:06 11:11:00.5969 -00:53:34.7676
G0739801 09:20:18 11:11:16.3661 -06:16:03.3168
G0740915 09:21:29 11:11:16.9298 -00:49:27.75
G1052029 09:22:38 11:13:37.489 -01:57:20.5488
G0569482 09:23:48 11:14:00.6043 -00:20:11.1948
G0810723 09:25:00 11:14:39.1478 -05:18:24.5016
G1070206 09:26:09 11:14:42.1471 -03:48:51.5016
G0662104 09:27:19 11:15:57.8614 -02:10:14.304
G0203483 09:28:28 11:16:00.0074 -03:46:47.3052
G0726560 09:29:37 11:16:06.6761 -02:52:10.3008