{
  "bibcode": "2017GCN.20720....1Y",
  "body": "Yoshida, M. (Hiroshima U.), Itoh, R., Tachibana, Y., Fujiwara, T.,\nMorita, K., Saito, Y., Kawai, N. (Tokyo Tech), Yanagisawa, K.,\nKuroda, D. (OAO, NAOJ) on behalf of J-GEM collaboration\n\nWe conducted optical imaging observations of nearby galaxies within\nthe probability skymap of G274296 (Shawhan et al. GCN20689) with\nthe 50cm MITSuME telescopes at Akeno Observatory and Okayama\nAstrophysical Observatoty (OAO) and the 91cm wide field near-infrared\ncamera (OAOWFC) in the framework of J-GEM collaboration. We obtained\noptical three color data, g', Rc, and Ic, simultaneously with a\nthree color camera attached to the MITSuME telescopes. Near-infrared\nJ-band data were obtained with OAOWFC.\n\nWe listed the 5-sigma limiting AB magnitude of each observation below.\nNo optical/infrared transit source corresponding to the GW event was\nfound by these observations.\n\n\nTelescope: Akeno-MITSuME 50cm telescope\n----------------------------------------------------------------------\ngalaxy                  RA      DEC     UT              g'   Rc   Ic\n----------------------------------------------------------------------\nSDSSJ100438.01+191712.3 151.145 19.2901 2017/2/18-13:22 17.9 17.7 17.2\nSDSSJ110234.52+321339.2 165.602 32.3042 2017/2/18-19:31 18.8 18.4 17.4\nPGC1754917              157.824 25.9592 2017/2/18-17:58 18.9 18.4 17.5\nPGC1752182              157.113 25.8593 2017/2/18-13:46 18.5 18.2 16.9\nPGC031387               158.876 26.1942 2017/2/18-20:02 18.2 17.9 16.8\nPGC1739538              156.843 25.4675 2017/2/18-11:20 17.9 17.2 16.5\nSDSSJ103227.23+254420.0 158.106 25.8022 2017/2/18-16:58 18.8 18.3 17.4\nPGC1808655              160.101 27.4668 2017/2/18-14:14 18.5 18.2 17.2\nUGC06195                167.267 33.9688 2017/2/18-15:14 16.9 15.3 15.3\nPGC1742220              157.981 25.6686 2017/2/18-18:29 18.9 18.4 17.6\nPGC1747289              156.049 25.6424 2017/2/18-09:59 17.8 17.2 16.6\nSDSSJ105042.23+315119.6 162.700 31.8200 2017/2/18-11:54 18.3 18.0 17.3\nSDSSJ095947.63+193539.3 149.959 19.5236 2017/2/18-10:27 18.3 17.7 16.7\nPGC029063               150.570 19.1965 2017/2/18-12:21 18.7 18.1 17.5\nUGC05403                150.648 19.1695 2017/2/18-12:52 18.9 18.2 17.5\nNGC3251                 157.327 26.0998 2017/2/18-14:54 17.5 16.6 16.4\nSDSSJ102436.95+253546.9 156.180 25.5393 2017/2/18-10:50 17.4 17.5 16.9\nUGC05679                157.205 26.4013 2017/2/19-16:47 16.9 16.6 15.7\nSDSSJ102858.64+251713.1 157.240 25.2823 2017/2/19-12:51 18.6 17.9 17.4\nUGC05844                160.985 28.1973 2017/2/19-15:56 17.7 17.1 16.3\nPGC1758620              157.748 26.0048 2017/2/19-13:23 17.1 17.0 15.8\nSDSSJ101200.03+213820.3 153.035 21.5636 2017/2/19-09:50 17.9 17.0 16.4\nIC2583                  157.780 26.1222 2017/2/19-16:19 17.0 16.5 15.8\nSDSSJ103953.27+272240.0 159.996 27.3349 2017/2/19-11:21 18.6 18.3 17.5\nPGC027259               143.837 13.4901 2017/2/19-10:18 18.1 17.7 17.0\nSDSSJ100552.60+202338.0 151.437 20.4614 2017/2/19-18:07 16.2 14.6 14.7\nPGC028676               149.015 20.5527 2017/2/19-19:09 15.9 14.6 14.7\nUGC05401                150.637 18.9816 2017/2/19-10:50 18.3 18.0 18.0\nPGC1834191              161.973 28.3977 2017/2/20-14:28 19.2 18.7 17.8\nSDSSJ101717.58+220939.3 154.300 22.2234 2017/2/20-16:58 19.2 18.6 17.7\nPGC1815236              156.617 27.7584 2017/2/20-19:45 18.4 18.0 16.8\nPGC142873               164.106 31.2584 2017/2/20-13:27 19.2 18.5 17.5\nSDSSJ103934.08+270302.4 159.907 27.0091 2017/2/20-11:53 16.8 16.3 15.8\nIC2590                  159.049 27.0281 2017/2/20-17:30 19.0 18.3 17.5\nPGC1793207              156.099 26.9558 2017/2/20-13:57 19.3 18.6 17.7\nPGC1752683              157.833 25.8397 2017/2/20-12:26 16.9 16.9 16.2\nSDSSJ104414.58+284206.3 161.031 28.7746 2017/2/20-18:32 18.7 18.1 17.3\nPGC1662338              154.073 22.0953 2017/2/20-16:28 19.2 18.6 17.6\nSDSSJ104053.41+270354.0 160.235 27.0461 2017/2/20-12:56 18.8 18.2 17.4\nPGC029111               150.714 20.2397 2017/2/20-14:59 19.0 18.4 17.5\nPGC1980945              166.151 32.1969 2017/2/20-19:14 18.3 17.9 16.3\nPGC031406               159.008 27.0253 2017/2/20-18:00 18.8 18.3 17.3\n----------------------------------------------------------------------\n\nTelescope: OAO-MITSuME 50cm telescope\n----------------------------------------------------------------------\ngalaxy                  RA      DEC     UT              g'   Rc   Ic\n----------------------------------------------------------------------\nUGC06384                170.492 34.9486 2017/2/18-19:03 19.4 19.5 18.9\nSDSSJ094405.52+170156.0 146.023 17.0324 2017/2/18-14:09 19.4 19.3 18.7\nSDSSJ093238.79+113551.7 143.162 11.5977 2017/2/18-12:50 19.2 19.1 18.6\nSDSSJ092951.83+115535.7 142.466 11.9266 2017/2/18-11:32 18.3 18.5 17.9\nSDSSJ092816.16+110437.4 142.067 11.0770 2017/2/18-11:13 18.2 18.4 17.9\nPGC2053997              170.195 34.7511 2017/2/18-19:24 19.2 19.1 18.4\nPGC1888393              162.717 30.0545 2017/2/18-20:21 18.9 18.9 18.3\nPGC142873               164.084 31.2703 2017/2/18-20:02 18.6 19.2 18.5\nPGC090923               143.003 12.2616 2017/2/18-11:52 19.2 18.7 18.1\nPGC035503               172.781 35.5896 2017/2/18-17:05 19.4 19.3 18.7\nPGC032906               164.200 31.0904 2017/2/18-19:42 19.0 19.2 18.5\nPGC027259               143.841 13.5489 2017/2/18-13:10 19.4 19.4 18.3\nPGC027237               143.732 11.6809 2017/2/18-13:29 19.3 19.2 18.7\nPGC027113               143.216 12.2868 2017/2/18-12:31 19.1 19.1 18.6\nPGC027081               143.068 12.0939 2017/2/18-12:11 18.9 19.0 18.4\nNGC3694                 172.226 35.4139 2017/2/18-17:45 19.4 19.4 18.8\nNGC3380                 162.051 28.6018 2017/2/18-20:41 18.7 18.8 18.2\nNGC2954                 145.100 14.9226 2017/2/18-13:50 19.3 19.3 18.7\n2MASXJ11291265+3523089  172.303 35.3858 2017/2/18-17:25 19.3 19.4 18.8\n----------------------------------------------------------------------\n\nInstrument: OAOWFC\n-------------------------------------------------------------\ngalaxy                  RA      DEC     UT              J\n-------------------------------------------------------------\nUGC05381                150.215 22.3137 2017/2/18-13:08 18.79\nSDSSJ100106.15+221806.0 150.276 22.3017 2017/2/18-13:08 18.79\nIC2551                  152.668 24.4141 2017/2/18-13:54 18.81\nPGC027113               143.216 12.2868 2017/2/18-10:39 18.26\nPGC027081               143.068 12.0939 2017/2/18-10:39 18.26\nUGC05420                150.995 22.2760 2017/2/18-18:44 18.51\nPGC1667794              150.965 22.3239 2017/2/18-18:44 18.51\nPGC1667131              150.985 22.2882 2017/2/18-18:44 18.51\nPGC1666640              150.995 22.2641 2017/2/18-18:44 18.51\nUGC05381                150.215 22.3137 2017/2/18-18:02 18.72\nSDSSJ100106.15+221806.0 150.276 22.3017 2017/2/18-18:02 18.72\n2MASXJ09532220+2026551  148.343 20.4487 2017/2/18-12:22 18.66\n-------------------------------------------------------------",
  "circularId": 20720,
  "createdOn": 1487760106000,
  "email": "yoshidam@hiroshima-u.ac.jp",
  "subject": "LIGO/Virgo G274296: J-GEM optical/NIR follow-up observations",
  "submitter": "Michitoshi Yoshida at J-GEM  <yoshidam@hiroshima-u.ac.jp>",
  "eventId": "LIGO/Virgo G274296"
}