GCN Circular 15035
Subject
GRB 130725A - Faulkes Telescope South Observations
Date
2013-07-26T08:43:47Z (11 years ago)
From
Andrea Melandri at Liverpool John Moores U <axm@astro.livjm.ac.uk>
F.J. Virgili (LJMU), C. Guidorzi (U. Ferrara), J. Japelj, D. Kopac
(U. Ljubljana), A. Melandri (INAF-OAB) report:
"The 2-m Faulkes Telescope South robotically followed up GRB 130725A
(SWIFT trigger 563980; Zhang et al. GCN 15028) beginning 111.9 min
after the GRB trigger time. No optical counterpart is detected within
the XRT error circle to the following conservative limits:
Midtime from GRB Exposure Filter Magnitude
(min) (s)
-------------------------------------------------------------------------
112.2 3x10s r' > 18.9
117.1 1x10s i' > 17
-------------------------------------------------------------------------
Values are calibrated against nearby SDSS field stars.