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GCN Circular 25028

Subject
LIGO/Virgo S190706ai: No counterpart candidates in KAIT observations
Date
2019-07-08T04:26:29Z (5 years ago)
From
Weikang Zheng at UC Berkeley <weikang@berkeley.edu>
Shaunak Modak, Yukei Murakami, Andrew Hoffman, Thomas de Jaeger,
Sergiy Vasylyev, Benjamin Stahl, Keto Zhang, WeiKang Zheng,
Nachiket Girish, 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-wavei
event S190706ai (GCN 24998) 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 129 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 04:22:48, July
7th UT, about 5.9 hours after the trigger, and the last image at 07:18:41
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(July07)  RA_J2000   Dec_J2000
-----------------------------------------------
G0777412  04:22:48  12:13:30.498   +61:02:32.7372
G0571516  04:23:57  12:14:48.589   +59:54:21.9384
G0564638  04:25:06  12:16:06.599   +60:35:13.2072
G0904927  04:26:16  12:17:20.5774  +60:52:59.4984
G0787109  04:27:25  12:17:49.7863  +61:29:39.5808
G1199777  04:28:34  12:19:32.0654  +62:09:19.7676
G0732275  04:29:44  12:20:24.5472  +61:05:59.9388
G0698214  04:30:53  12:20:54.5875  +61:59:34.9656
G0565645  04:32:11  12:22:30.8093  +63:54:11.2788
G0682903  04:33:20  12:23:01.0913  +61:42:26.2044
G0765680  04:34:29  12:23:05.2368  +63:13:21.1764
G1908371  04:35:39  12:23:42.9859  +62:56:25.4904
G0790650  04:36:48  12:24:08.4082  +63:38:49.7184
G1709689  04:38:03  12:24:12.24    +58:50:13.308
G0605386  04:39:13  12:24:24.895   +61:50:36.8124
G0656354  04:40:22  12:24:26.2243  +61:31:48.8316
G0634570  04:41:31  12:24:41.8104  +63:23:31.812
G0584909  04:42:41  12:24:42.7039  +61:28:14.8044
G0682297  04:43:50  12:25:19.6802  +61:45:06.7968
G0726198  04:44:59  12:25:43.3375  +62:45:37.7532
G0735369  04:46:09  12:25:44.0587  +61:31:12.7416
G0592302  04:47:18  12:25:53.2325  +62:25:44.652
G0689229  04:48:27  12:27:20.1526  +63:09:45.6264
G0251572  04:49:37  12:28:02.3621  +63:31:13.3752
G0648442  04:50:46  12:29:30.9082  +62:48:36.2376
G0722728  04:51:57  12:30:12.1363  +56:42:07.9812
G0367866  04:53:07  12:31:17.8308  +57:49:48.8172
G0687685  04:54:16  12:31:50.2625  +58:21:28.9296
G0579241  04:55:34  12:31:53.8111  +64:39:09.4824
G0800642  04:56:43  12:31:53.9318  +62:40:16.4964
G0749448  05:06:43  12:32:17.069   +63:57:21.6324
G0801641  05:09:04  12:34:43.7952  +61:24:53.604
G0695406  05:10:13  12:34:51.9103  +58:55:00.21
G0769962  05:11:23  12:34:54.1663  +61:42:25.74
G0505896  05:13:41  12:36:11.4038  +58:04:16.9428
G0606955  05:14:51  12:36:48.977   +62:04:38.4348
G0777685  05:16:00  12:39:54.3677  +61:12:41.4072
G0577774  05:17:09  12:40:07.8295  +62:46:10.4916
G0606869  05:18:18  12:40:34.6764  +62:49:17.382
G0697940  05:19:28  12:41:22.4779  +61:42:42.2856
G0641380  05:21:46  12:42:03.6475  +59:51:16.596
G0818263  05:22:56  12:42:05.4235  +63:06:44.982
G0779598  05:24:05  12:42:23.7158  +60:08:04.8696
G0570567  05:25:15  12:42:39.1003  +61:41:09.4524
G0718455  05:26:24  12:42:54.4519  +63:16:37.5168
G0554983  05:27:35  12:43:00.9559  +56:43:50.5956
G0554755  05:28:46  12:43:05.8154  +63:34:51.4956
G0722161  05:29:56  12:43:19.7827  +58:57:53.6148
G0575799  05:31:05  12:43:51.599   +62:30:25.9416
G0823782  05:32:14  12:45:21.5954  +61:41:39.3756
G0086390  05:33:24  12:47:15.3991  +62:28:53.04
G0783845  05:34:33  12:48:03.0542  +62:36:33.2676
G0623276  05:35:43  12:48:33.7721  +62:27:39.1428
G0810253  05:36:52  12:48:39.9281  +62:37:03.18
G0556824  05:38:01  12:48:40.6054  +59:16:31.71
G0688939  05:39:11  12:49:23.3386  +58:25:15.6612
G0484524  05:40:22  12:50:13.5461  +63:33:58.0752
G0727440  05:47:09  12:52:05.3978  +60:31:45.6888
G0418402  05:48:27  12:52:08.335   +62:53:11.6664
G0790841  05:49:36  12:52:16.0253  +62:40:39.8568
G0695820  05:50:45  12:52:27.7368  +60:04:00.9444
G0551902  05:51:55  12:52:44.5092  +59:15:56.2356
G0797074  05:53:04  12:53:57.9859  +58:17:38.2164
G0562164  05:54:13  12:54:36.1817  +62:13:44.7852
G0741937  05:55:23  12:54:57.4769  +61:27:10.7568
G0644214  05:56:32  12:55:10.6421  +64:15:52.4592
G0752137  05:57:41  12:55:36.7457  +60:10:57.6552
G0792093  05:58:51  12:55:53.1847  +58:19:49.2852
G1463818  06:00:00  12:55:58.3483  +59:06:51.2316
G0644569  06:01:09  12:55:58.7292  +62:08:48.5952
G0763378  06:02:19  12:56:08.0016  +58:45:23.9364
G0501647  06:03:34  12:56:14.3299  +56:52:24.4236
G0764293  06:04:50  12:56:42.0593  +63:05:15.72
G0811967  06:05:59  12:57:12.1471  +63:37:41.5092
G0669049  06:07:08  12:57:57.5026  +62:26:22.4556
G0820710  06:08:18  12:58:20.7715  +61:30:39.33
G0733157  06:09:27  12:59:33.7025  +60:29:04.8624
G0581776  06:10:36  13:01:00.9706  +59:50:56.4504
G0668949  06:11:46  13:01:50.31    +58:19:35.6736
G0811935  06:12:55  13:02:32.6734  +61:28:02.118
G0767619  06:14:04  13:02:39.0307  +62:29:39.084
G0767436  06:15:13  13:02:57.5573  +62:28:51.7764
G0649830  06:16:23  13:04:11.88    +61:11:41.298
G0568950  06:17:32  13:05:01.9226  +60:46:11.0136
G0567935  06:18:41  13:05:22.8626  +61:08:10.0572
G0849452  06:19:51  13:05:32.7758  +60:09:56.0232
G0421347  06:21:00  13:05:47.395   +58:51:08.6472
G0717926  06:28:47  13:06:13.9601  +60:13:02.8452
G1101781  06:29:56  13:06:43.3594  +59:48:47.844
G0570323  06:31:06  13:07:36.9103  +62:12:57.6
G0714491  06:32:15  13:08:07.1484  +60:23:06.2268
G0740340  06:33:24  13:08:24.785   +61:11:30.228
G0814561  06:34:34  13:08:46.5235  +62:16:17.796
G0556963  06:35:43  13:09:14.3153  +62:10:29.9568
G0628708  06:36:52  13:10:04.3286  +60:13:26.8068
G0549578  06:38:02  13:13:13.0555  +60:18:49.7664
G0033113  06:39:11  13:14:52.5257  +60:39:36.8784
G0558654  06:40:20  13:15:10.3747  +60:53:39.9264
G0558303  06:41:30  13:15:12.257   +62:19:34.932
G0714157  06:42:39  13:15:30.7618  +62:07:44.7888
G0709856  06:43:46  13:15:35.0611  +62:07:28.7652
G0615460  06:44:56  13:18:16.8934  +60:26:03.8616
G0798909  06:46:05  13:19:46.9555  +60:38:22.2684
G0827200  06:47:14  13:19:48.1385  +61:37:53.2776
G0825855  06:48:24  13:21:02.1936  +60:52:09.2352
G0566092  06:49:35  13:34:42.5501  +62:34:28.1352
G0698400  06:50:48  14:04:00.2453  +64:40:57.6948
G0561012  06:52:03  14:49:21.6101  +63:16:14.2392
G0776134  06:53:14  15:14:51.3024  +61:39:30.2184
G1089302  06:54:25  15:26:38.2982  +60:56:35.268
G0316711  06:55:36  15:37:36.2074  +63:00:37.8216
G1023955  06:56:46  15:38:32.0287  +61:59:43.494
G0945305  06:57:55  15:44:08.7744  +61:41:54.9636
G0763071  06:59:04  15:46:17.6366  +60:40:21.5796
G1360591  07:00:14  15:47:14.436   +60:47:25.926
G1304744  07:01:23  15:50:53.3167  +61:58:44.0292
G1136264  07:02:32  15:51:01.1976  +60:09:07.092
G1333265  07:05:59  15:52:31.8641  +61:43:45.4152
G1354931  07:07:08  15:53:49.8449  +61:49:45.5628
G1475851  07:08:17  15:55:35.6837  +61:26:18.6108
G1465876  07:09:27  15:56:52.4633  +61:23:46.8096
G1401373  07:10:36  15:57:09.9828  +59:58:29.8164
G1152826  07:11:45  15:59:01.6992  +59:24:21.69
G1165822  07:12:55  15:59:06.8042  +60:32:33
G1179202  07:14:04  16:00:27.0482  +60:20:44.1312
G0872216  07:15:13  16:01:42.2206  +61:52:06.5316
G1420196  07:16:23  16:03:14.945   +61:50:34.4652
G0916525  07:17:32  16:04:50.1636  +59:33:48.9276
G1097215  07:18:41  16:09:06.4855  +60:52:14.1672
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