GCN Circular 24274

Han-Jie Tan (NCU), Po-Chieh Yu (NCU), Atharva Sunil Patil (NCU),
Chow-Choong Ngeow (NCU), Albert Kong (NTHU), Wing-Huen Ip (NCU)

On behalf of Global Relay of Observatories Watching Transients Happen
(GROWTH) collaborations

We report observations of 58 galaxies in 90% localization of the BNS merger
candidate, S190425z, detected by LIGO/Virgo (GCN #24168) using the Lulin
One-meter Telescope (LOT) in Taiwan. The observation started at 2019-04-25
14:11:07 UT, ~5.9 hours after the trigger. All images were taken in R-band
with 180 second exposure time. No significant transient can be identified
brighter than R~20 mag (AB). The galaxy coordinates are listed below.

We thank the staff in Lulin Observatory for helping the observations.

195.2782  +39.841
195.8646  +53.532
196.3275  +31.442
197.0104  +53.936
200.6963  +32.623
206.5110  +55.716
206.5117  +55.715
212.2203  +33.532
212.8712  +55.122
214.8233  +35.138
216.1732  +55.706
217.8031  +35.332
220.4162  +36.647
221.4388  +32.630
224.0184  +45.405
225.3241  +31.875
226.3790  +30.911
229.1854  +7.0222
32.0402    +43.007
233.1953  +40.223
233.4227    +28.145
234.6793  +30.671
236.9750  +25.730
237.0115  +25.439
237.4094  +42.034
238.7582  +41.578
239.0813  +24.747
239.8704  +39.828
243.6089    +35.109
243.9256    +19.638
244.1279    +35.708
244.5305    +21.066
244.8738    +18.480
245.7836    +19.006
246.1423    +21.195
246.4086    +16.455
247.4369    +40.812
247.5337    +14.904
248.3241    +35.342
248.5431    +19.634
249.0647    +10.843
249.3963    +11.733
250.0136    +15.883
250.1398    +8.988
251.5005    +7.189
251.5155    +9.283
252.3932    +9.783
252.4388    +4.278
252.4483    +4.932
252.7889    +7.677
253.2453    +2.401
253.2702    -16.291
253.7912    +5.859
254.1937    -1.962
254.3263    +0.570
254.3493    -1.797
254.3984    -1.796
256.2616    -4.596