[vsnet-grb-info 22208] LIGO/Virgo S190425z: No Optical Detection of the Swift/UVOT Transient with Las Cumbres Observatory

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  24307
SUBJECT: LIGO/Virgo S190425z: No Optical Detection of the Swift/UVOT Transient with Las Cumbres Observatory
DATE:    19/04/27 22:39:24 GMT
FROM:    Iair Arcavi at LCOGT  <arcavi at gmail.com>

Iair Arcavi (Tel Aviv University), D. Andrew Howell (LCO/UCSB), Curtis
McCully (LCO), Daichi Hiramatsu (LCO/UCSB), Jamison Burke (LCO/UCSB), Craig
Pellegrino (LCO/UCSB) on behalf of the Las Cumbres GW Follow-up
Collaboration


We observed the field of the UVOT transient (Breeveld et al. GCN 24296)
with a Las Cumbres Observatory 1m telescope at the South African
Astronomical Observatory in the g and r bands starting at 2019-04-27 21:40
UT. We do not see the transient down to a g-band limiting magnitude of
roughly 21.8, and an r-band limiting magnitude of 21.5 (determined by
comparison to PS1 images).