TITLE: GCN CIRCULAR NUMBER: 24225 SUBJECT: LIGO/Virgo S190425z: Las Cumbres Observatory Galaxy Targeted Counterpart Search DATE: 19/04/26 15:02:05 GMT FROM: Daichi Hiramatsu at Las Cumbres Observatory Daichi Hiramatsu (LCO/UCSB), Craig Pellegrino (LCO/UCSB), Jamison Burke (LCO/UCSB), D. Andrew Howell (LCO/UCSB), Iair Arcavi (Tel Aviv University), Curtis McCully (LCO) on behalf of the Las Cumbres GW Follow-up Collaboration We report 300s gri-band images of the following galaxies in the LIGO/Virgo S190425z localization region (GCN 24168) with the Las Cumbres Observatory 1m telescopes at Sutherland, South Africa. We find no obvious candidates after performing image subtraction using SDSS images as templates. Name RA(J2000) DEC(J200) Time(UT) Filter Limmag CSCG080-051 249.859940 +11.210459 2019-04-25 23:30:33 i 21.4 2MASXJ16542402-0953212 253.600113 -9.889244 2019-04-25 21:36:06 i 21.0 2MASXJ16542402-0953212 253.600113 -9.889244 2019-04-25 21:41:48 r 21.8 2MASXJ16542402-0953212 253.600113 -9.889244 2019-04-25 21:47:30 g 22.4 CSCG137-046 242.315292 +25.712521 2019-04-25 22:16:57 i 20.8 CSCG137-046 242.315292 +25.712521 2019-04-25 22:22:38 r 21.6 CSCG137-046 242.315292 +25.712521 2019-04-25 22:28:19 g 22.5 NGC4555 188.921585 +26.522999 2019-04-25 19:49:40 i 21.8 NGC4555 188.921585 +26.522999 2019-04-25 19:55:21 r 22.6 NGC4555 188.921585 +26.522999 2019-04-25 20:01:02 g 22.7 NGC4375 186.252045 +28.558516 2019-04-25 19:36:20 i 20.8 NGC4375 186.252045 +28.558516 2019-04-25 19:42:01 r 22.5 NGC4375 186.252045 +28.558516 2019-04-25 19:47:42 g 22.7 NGC4585 189.555481 +28.936903 2019-04-25 19:55:31 i 20.4 NGC4585 189.555481 +28.936903 2019-04-25 20:01:12 r 22.0 NGC4585 189.555481 +28.936903 2019-04-25 20:06:54 g 22.7 UGC10412 247.400574 +15.658440 2019-04-25 23:04:17 i 21.5 UGC10412 247.400574 +15.658440 2019-04-25 23:09:59 r 22.1 UGC10412 247.400574 +15.658440 2019-04-25 23:15:41 g 22.4