GCN Circular 14628
Subject
GRB130511A: SOAO Optical Observation
Event
Date
2013-05-12T15:16:58Z (13 years ago)
From
Myungshin Im at Seoul Nat U <mim@astro.snu.ac.kr>
M. Im (CEOU/SNU), H.-I. Sung (KASI), & Y. Urata (NCU)
on behalf of a larger collaboration
We observed GRB 130511A (Krimm et al., GCN 14620)
in BVRI filters using a 0.6m telescope at the Sobaeksan
Optical Astronomy Observatory (SOAO), starting at 76min
after the BAT alert.
In stacked images of 6 x 300sec exposures, we identify
the optical afterglow with the following magnitude
(Cucchiara et al. GCN 14621; Takaki et al. GCN 14626),
calibrated against a USNO-B1 star in the vicinity.
T(mid, UT) Mag
05-11 13:50:12 R=20.78 +- 0.13
The afterglow is detected in the other bands, but at
a lower S/N.
We thank the staffs at SOAO for performing the observation.