[vsnet-grb-info 22249] LIGO/Virgo S190425z: 1.3-m optical imaging of UVOT transient field

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  24348
SUBJECT: LIGO/Virgo S190425z: 1.3-m optical imaging of UVOT transient field
DATE:    19/04/29 23:24:43 GMT
FROM:    Marc A. Murison at U.S.Naval Obs,Flagstaff  <marc.nofs at gmail.com>

Marc A. Murison, U.S. Naval Observatory--Flagstaff Station (NOFS)

We imaged the position of the reported Swift/UVOT transient (Breeveld
et al., GCN Circ. 24296), potentially corresponding to LIGO/Virgo trigger
S190425z (LIGO/Virgo Collaboration, GCN Circ. 24168), with the NOFS
1.3-meter telescope. Nine 900-second exposures were taken in SDSS r (5)
and g (4). Examination and comparison to PS1 reveals no new sources
brighter than apparent SDSS r magnitude 22.3. Exposure times were
2019-04-28 08:44 to 11:12 UTC. Stacking images did not produce benefit
due to variable and worsening seeing.