GCN Circular 16147
Subject
GRB 140423A: Swift/UVOT detection of a possible counterpart
Date
2014-04-23T10:49:48Z (11 years ago)
From
Margaret Chester at PSU <chester@swift.psu.edu>
M. M. Chester (PSU), E. Sonbas (NASA/GSFC/Adiyaman Univ.), K. L. Page
(U Leicester), D. Malesani (DARK/NBI), and S. R. Oates (UCL-MSSL)
report on behalf of the Swift/UVOT team:
Swift/UVOT took a finding chart exposure of 150 seconds with the White filter
starting 2946 seconds after the BAT trigger. A faint source (19.6 +/- 0.4 mag)
is detected in the White filter which is consistent with the candidate reported
by Elenin et al. (GCN Circ. 16143) but not consistent with the Swift/XRT position
reported by D. N. Burrows et al. (GCN Circ. 16146). The separation from the XRT
position is 9.6 arcsec. The preliminary UVOT position is
RA (J2000) 197.28546 (13:09:08.51)
Dec (J2000) 49.84133 (+49:50:28.8)
with an estimated uncertainty of 1.1 arcsec (radius, 90% confidence,
statistical + systematic). No correction has been made for the
expected extinction corresponding to E(B-V) of 0.01.