[vsnet-grb-info 22145] LIGO/Virgo S190425z: Further MMT Follow-Up Observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  24244
SUBJECT: LIGO/Virgo S190425z: Further MMT Follow-Up Observations
DATE:    19/04/26 18:37:16 GMT
FROM:    Griffin Hosseinzadeh at Harvard U  <griffin.hosseinzadeh at cfa.harvard.edu>

G. Hosseinzadeh, E. Berger, P. K. Blanchard, T. Eftekhari, J. Gill,
S. Gomez, L. Patton, V. A. Villar, P. K. G. Williams (Harvard U),
P. S. Cowperthwaite (Carnegie Obs), R. Chornock (Ohio U), W. Fong, 
R. Margutti (Northwestern U), and M. Nicholl (U Edinburgh) report:

We obtained 30 s i-band images of the following GLADE galaxies (Dalya
et al. 2018, MNRAS, 479, 2374) in the LIGO/Virgo localization region of
S190425z (GCN 24168) with the MMTCam instrument on the MMT 6.5-m telescope:

Name              R.A. Dec.      Date UT
16590728-0544311  254.780334 -5.741986  2019-04-26 08:30:29.18
58987.0           251.852000 -20.141740  2019-04-26 08:32:14.13
NGC6224           252.077301 6.312206  2019-04-26 08:34:11.44
NGC6051           241.236267 23.932871  2019-04-26 08:36:36.52
IC4572            235.475815 28.134085  2019-04-26 08:40:22.72
UGC10320          244.530502 21.066381  2019-04-26 08:44:29.81
IC4569            235.201462 28.292059  2019-04-26 08:47:01.76
57607             243.740997 21.938314  2019-04-26 08:50:10.58
57472             243.084732 23.001947  2019-04-26 08:51:40.62
IC1219            246.114319 19.482584  2019-04-26 08:53:28.45
UGC10412          247.400574 15.658440  2019-04-26 08:55:23.95
NGC6001           236.941498 28.641853  2019-04-26 08:57:41.17
55883             235.941849 28.415155  2019-04-26 08:59:38.86
57645             243.925613 19.637508  2019-04-26 09:02:13.12
59121             252.840240 7.862305  2019-04-26 09:04:08.24
56949             241.148224 25.189823  2019-04-26 09:06:30.33
58860             251.038666 7.445273  2019-04-26 09:08:30.08
57542             243.441711 22.918877  2019-04-26 09:10:43.92
UGC10224          242.209320 22.042635  2019-04-26 09:13:35.96
58097             246.408646 16.455000  2019-04-26 09:16:56.83
1717114           241.067825 24.812338  2019-04-26 09:18:57.27
59239.0           253.600113 -9.889244  2019-04-26 09:22:17.77
UGC10260          242.991150 20.923468  2019-04-26 09:25:28.05
IC4570            235.343994 28.229799  2019-04-26 09:28:54.53
UGC10035          236.901474 26.063671  2019-04-26 09:42:06.86
57692             244.190460 19.521360  2019-04-26 09:46:51.23
16505342-1500143  252.722595 -15.003985  2019-04-26 09:49:19.19
NGC6240           253.245255 2.400985  2019-04-26 09:51:26.55
UGC10360          245.797256 16.932606  2019-04-26 09:53:38.27
55774             235.152664 28.512449  2019-04-26 09:56:11.90
58735             250.167572 14.351479  2019-04-26 09:58:49.71
IC4621            252.713272 8.783868  2019-04-26 10:00:50.14
NGC6075           242.844025 23.965147  2019-04-26 10:04:43.26
16582619-0319463  254.609146 -3.329548  2019-04-26 10:11:41.89
16073961+2220315  241.915070 22.342087  2019-04-26 10:15:39.64
58028             246.063141 20.183607  2019-04-26 10:17:29.71
54895.0           230.687134 29.769716  2019-04-26 10:19:52.41
IC4505            221.639069 33.408661  2019-04-26 10:21:51.85
58768             250.337082 8.909049  2019-04-26 10:24:47.75
55373             233.193909 28.367073  2019-04-26 10:27:25.07
IC4587            239.965057 25.940653  2019-04-26 10:29:21.52
UGC08145          195.576172 32.890778  2019-04-26 10:31:26.07
57293             242.276917 24.870296  2019-04-26 10:35:04.99
16540875-0738073  253.536499 -7.635365  2019-04-26 10:38:59.44
52138             218.826752 35.118813  2019-04-26 10:41:49.85
16153554+1927123  243.898087 19.453444  2019-04-26 10:44:25.24
59338.0           254.524000 -21.274100  2019-04-26 10:46:46.58
UGC09233          216.145950 35.279827  2019-04-26 10:50:02.28
56421             239.016144 24.447973  2019-04-26 10:52:11.64
1484188           247.218430 15.420772  2019-04-26 10:54:30.92

Comparison of the images to the PS1 3pi survey (Chambers et al. 2016, 
arXiv:1612.05560) reveals no new sources brighter than ~21 mag within
the 2.7 arcmin field of view.

We thank Chun Ly and Ben Kunk at MMT for taking these observations and
Dallan Porter for help with the target submission.