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GCN Circular 24322

Subject
LIGO/Virgo S190426c: LOAO Observation
Date
2019-04-28T06:29:11Z (5 years ago)
From
Gregory SungHak Paek at SNU <shpaek@astro.snu.ac.kr>
Gregory S.H. Paek (SNU), Myungshin Im (SNU), Hyun-Il Sung (KASI), Gu Lim
(SNU), Joonho Kim (SNU), Sungyong Hwang (SNU), Bomi Park (SNU), Sophia Kim
(SNU), Changsu Choi (SNU), Chung-Uk Lee (KASI), Seung-Lee Kim (KASI), Hyung
Mok Lee (KASI), on behalf of a larger collaboration

We observed 23 host galaxy candidates with the 1.0-m telescope at the
Lemonsan Optical Astronomical Observatory(LOAO) in the 90% updated
localization area of S190426c, detected by LIGO/Virgo (GCN #24237).
The observation started at 2019-04-27 09:14:26, and the images were taken
twice in R-band with 120 sec exposure time. No obvious transient has been
identified to a preliminary 3-sigma depth of R=20.8 AB mag. The list of the
inspected targets is given below.

NAME                    RA            DEC
2MASS+20300804+5415120    307.533508    54.253361
2MASS+20232657+5347113    305.860718    53.786499
2MASS+20175967+5440389    304.498657    54.677479
2MASS+20292607+5411091    307.358643    54.185883
2MASS+20205571+5530336    305.232147    55.509338
2MASS+20355212+5549587    308.967194    55.832996
2MASS+20305041+5537391    307.710052    55.627537
2MASS+20183442+5619548    304.643433    56.331894
2MASS+20360197+5350457    309.008209    53.846035
2MASS+20363163+5824495    309.131805    58.41375
2MASS+20403391+5348447    310.141296    53.812439
2MASS+20262902+5827565    306.620941    58.465717
2MASS+20290191+5817016    307.257996    58.283779
2MASS+20243518+5606523    306.146606    56.114536
2MASS+20235181+6448514    305.965881    64.814285
2MASS+20431631+6211283    310.817993    62.1912
2MASS+21072317+6322504    316.846558    63.38068
2MASS+20323093+6451261    308.128906    64.857254
2MASS+20391049+6303489    309.793732    63.063591
2MASS+20563318+6814486    314.138275    68.246841
2MASS+20453544+6259029    311.397705    62.984146
2MASS+21011016+6334464    315.292358    63.579582
2MASS+20550853+6249236    313.785583    62.823235

The observation of host galaxy candidates and the analysis of the data are
ongoing.
We thank the LOAO opertator for performing the observation.
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