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GCN Circular 13713

Subject
GRB 120819A: optical upper limit
Date
2012-09-04T13:14:01Z (12 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
Yu. Krugly, V. Chiorny (Institute of Astronomy of Kharkiv National 
University), A. Volnova (SAI MSU), I. Molotov (KIAM), A. Pozanenko (IKI) 
report on behalf of larger collaboration:

We observed the afterglow of GRB 120819A (Beardmore  et al. GCN 13681) with 
0.7m  telescope of Institute of Astronomy, Kharkiv National Univ. starting 
on Aug. 19 (UT) 18:27:41. A set of images were taken in R-filter.   We do 
not detect optical afterglow (Malesani et al. GCN 13683; Sudilovsky et 
al.GCN 13688). The photometry is based on the nearby USNO-B1.0 (R2) stars:

   T0+,      Filter   Exposure,  OT,   UL (3 sigma)
 mid, d                  (s)

0.22102    R        2160          n/d    20.3
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