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GCN Circular 18470

Subject
LIGO/Virgo G194575: Kanata/J-GEM optical follow-up
Date
2015-10-25T04:09:42Z (8 years ago)
From
Michitoshi Yoshida at J-GEM <yoshidam@hiroshima-u.ac.jp>
R. Itoh, T. Nakaoka, M. Yoshida, K. S. Kawabata (Hiroshima Univ.)
on behalf of the J-GEM collaboration

We made optical follow-up observations of G149575 with HOWPol
(Hiroshima Optical Wide-field Polarimeter) attached to the 1.5m
Kanata telescope at Higashi-hiroshima Observatory. The instrument
has a circular field-of-view whose diameter is 15'. Nearby galaxies
selected from GWGC within 10 degree in radius from the skymap peak
in the anti-Sun direction (RA=01:02:00 and DEC=+04:25:00).
We performed R and I bands imaging observations for each galaxy.

The observed galaxies and the limiting magnitudes of R and I bands
(Rlim and Ilim) are listed below. No new optical transient was found
in these data.

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# START-TIME         EXP-T RA      DEC    Rlim Ilim OBJECT
#############################################################
2015-10-23T09:46:35  270.0 12.0958 4.0917 18.3 18.7 IC0052
2015-10-23T09:59:36  270.0 13.1375 6.0025 19.2 19.6 UGC00537
2015-10-23T10:10:09  270.0 13.3625 5.7703 18.8 19.4 IC1592
2015-10-23T10:20:41  270.0 13.5792 6.1975 20.6 20.6 PGC003199
2015-10-23T10:31:15  270.0 12.9292 3.1714 17.7 19.5 UGC00526
2015-10-23T10:42:12  270.0 13.6708 5.7739 19.6 ---- IC1598
2015-10-23T10:52:43   90.0 12.9542 3.1056 16.2 20.4 UGC00527
2015-10-23T11:03:12  270.0 13.3833 2.9236 18.6 18.7 UGC00544
2015-10-23T11:13:44  270.0 13.2792 2.6206 18.4 18.3 PGC1232627
2015-10-23T11:24:16  270.0 14.0625 4.4094 18.8 19.4 UGC00574
2015-10-23T11:34:57  270.0 13.3667 2.7739 18.9 19.0 PGC003137
2015-10-23T11:45:43  270.0 14.6250 4.8956 19.0 19.1 PGC003495
2015-10-23T11:56:21  270.0 15.0875 4.6653 19.3 18.8 PGC003600
2015-10-23T12:06:48  270.0 14.6583 3.0289 19.5 19.3 PGC003500
2015-10-23T12:17:38  270.0 16.2375 5.6528 18.6 18.7 UGC00667
2015-10-23T12:28:09  270.0 16.2208 4.7672 18.3 19.0 IC0073
2015-10-23T12:38:41  270.0 15.4417 3.0817 19.8 19.2 UGC00637
2015-10-23T12:49:14  270.0 16.4792 4.0900 20.0 20.0 IC0074
2015-10-23T12:59:45  270.0 16.5583 3.5742 19.9 19.4 UGC00678
2015-10-23T13:10:14  270.0 17.6708 3.6136 18.9 19.2 PGC004199
2015-10-23T13:20:42  270.0 16.6792 2.8219 19.1 19.2 PGC1238390
2015-10-23T13:31:11  270.0 17.2208 3.1358 19.9 20.2 PGC1245956
2015-10-23T13:41:54  270.0 15.9333 2.2831 20.0 19.8 UGC00656
2015-10-23T13:52:27  270.0 16.2250 2.1331 20.2 19.9 IC1613
2015-10-23T14:02:57  270.0 14.4833 0.8689 19.2 19.0 PGC1177707
2015-10-23T14:13:30  270.0 14.9250 0.9164 19.2 19.1 UGC00618
2015-10-23T14:24:03  270.0 14.7292 1.0047 19.6 19.4 PGC003524
2015-10-23T14:34:31  270.0 14.7667 1.0011 19.9 19.8 PGC003530
2015-10-23T14:44:58  270.0 15.6292 1.3436 19.6 19.5 PGC003718
2015-10-23T16:04:32  270.0 17.1500 1.6417 18.9 19.0 UGC00711
2015-10-23T16:15:10  270.0 16.7250 1.9453 20.0 20.1 PGC003943
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