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GCN Circular 25377

Subject
LIGO/Virgo S190814bv: No candidates found in J-GEM follow-up observations
Date
2019-08-17T00:36:41Z (5 years ago)
From
Yousuke Utsumi at Hiroshima Astrophys. Science Center <youtsumi@hiroshima-u.ac.jp>
Nakaoka, T.; Sasada, M. (Hiroshima U.); Adachi, R.; Yatsu, Y.; Murata, K. L. (Tokyo Tech.); Yanagisawa, K.; Yoshida, M. (NAOJ); Onozato, H. (Nishi-Harima Astronomical Observatory); Tanaka, M. (Tohoku U.); Morokuma, T (U. Tokyo);  Utsumi, Y. (Stanford/SLAC) on behalf of J-GEM collaboration

We report galaxy-targeted observations for the gravitational wave event S190814bv (Mo et al, GCN Circ. 25324). We started our observations from 2019-08-16 15:21 UT about 1.7 days after the event and ended at 2019-08-16 19:12 UT.

We performed galaxy-targeted observations for 31 galaxies (see the table below) selected from the GLADE catalog (Dalya et al. 2018) in the probability skymap of S190814bv using the following telescopes and instruments.

We found no apparent transient objects in these galaxies to 5 sigma limiting magnitudes in AB listed below.

    galid         ra     dec     G    R    I    J    H       obsid    
--------------- ------- -------- ---- ---- ---- ---- ---- -------------
GL004822-250737 12.0911 -25.1268 --   19.3 --   --   19.1 Kanata-HONIR 
GL005130-243833 12.8744 -24.6425 14.7 12.9 13.7 --   --   MITSuME-Akeno
GL005242-254402 13.1733 -25.7339 --   18.3 --   --   18.8 Kanata-HONIR 
GL004843-234623 12.1782 -23.7731 --   19.0 --   --   19.6 Kanata-HONIR 
GL005010-231648 12.5404 -23.28   --   --   --   16.5 --   OAOWFC       
GL005033-231744 12.6379 -23.2955 --   --   --   16.5 --   OAOWFC       
GL004915-235131 12.3111 -23.8585 --   19.0 --   --   19.6 Kanata-HONIR 
GL004917-261309 12.3201 -26.2192 --   --   --   18.1 --   OAOWFC       
GL005215-244155 13.064  -24.6987 14.7 12.9 13.7 --   --   MITSuME-Akeno
GL005033-230100 12.6392 -23.0166 --   --   --   16.5 --   OAOWFC       
GL004058-220500 10.2428 -22.0831 --   18.4 --   --   19.1 Kanata-HONIR 
GL005115-231730 12.811  -23.2916 --   --   --   16.5 --   OAOWFC       
GL004923-263027 12.3463 -26.5075 --   --   --   18.1 --   OAOWFC       
GL004933-263219 12.3856 -26.5386 --   --   --   18.1 --   OAOWFC       
GL005045-232020 12.6863 -23.3388 --   --   --   16.5 --   OAOWFC       
GL005247-254018 13.1945 -25.6716 --   18.3 --   --   18.8 Kanata-HONIR 
GL004920-262835 12.332  -26.4764 --   --   --   18.1 --   OAOWFC       
GL005116-231740 12.8152 -23.2944 --   --   --   16.5 --   OAOWFC       
GL004934-263624 12.3936 -26.6067 --   --   --   18.1 --   OAOWFC       
GL004918-262834 12.3237 -26.4761 --   --   --   18.1 --   OAOWFC       
GL004708-242214 11.7814 -24.3706 --   18.0 --   --   18.5 Kanata-HONIR 
GL004922-261533 12.3437 -26.2592 --   --   --   18.1 --   OAOWFC       
GL004934-261716 12.3924 -26.2878 --   --   --   18.1 --   OAOWFC       
GL004843-233342 12.1804 -23.5617 --   19.3 --   --   20.1 Kanata-HONIR 
GL004729-252626 11.8706 -25.4407 --   19.3 --   --   18.5 Kanata-HONIR 
GL004928-263218 12.3648 -26.5383 --   --   --   18.1 --   OAOWFC       
GL005001-261807 12.5046 -26.302  --   --   --   18.1 --   OAOWFC       
GL004914-263121 12.3096 -26.5224 --   --   --   18.1 --   OAOWFC       
GL004946-262635 12.4418 -26.443  --   --   --   18.1 --   OAOWFC       
GL004901-234841 12.2562 -23.8113 --   19.0 --   --   19.6 Kanata-HONIR 
GL005424-252751 13.6014 -25.4641 --   17.6 --   --   19.1 Kanata-HONIR 

Kanata-HONIR: 150 cm Kanata telescope at Higashi-Hiroshima Observatory and HONIR -- a 2 channel imager (Rc and H) (Akitaya et al. 2014, Proc. SPIE 9147, 91474O)
MITSuME-Akeno: 50 cm MITSuME telescope at Akeno Observatory and a 3 color imager (g, Rc, Ic)
OAOWFC: 91 cm Okayama Astrophysical Observatory NIR Wide Field Camera, OAOWFC (J) (Yanagisawa, K., et al. 2016, Proc. SPIE, 9908, 99085D)
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