[vsnet-grb-info 6251] GRB 080613B: GROND Upper Limits
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Sat Jun 14 11:16:18 JST 2008
TITLE: GCN CIRCULAR
NUMBER: 7879
SUBJECT: GRB 080613B: GROND Upper Limits
DATE: 08/06/14 02:16:10 GMT
FROM: Christian Clemens at MPE <cclemens at mpe.mpg.de>
C. Clemens, A. Updike (Clemson University), T. Kruehler, J. Greiner, A. Kupcu
Yoldas, A. Yoldas (all MPE Garching) and G. Szokoly (Eoetvoes Univ., Budapest
and MPE Garching) report on behalf of the GROND team:
We observed the field of GRB 080613B (Swift trigger 313954; Markwardt et al.,
GCN #7873) simultaneously in g'r'i'z'JHK with GROND (Greiner et al. 2008,
PASP 120, 405) mounted at the 2.2m ESO/MPI telescope at La Silla Observatory
(Chile).
Observations started at 22:47 UT on June 13th, 2008, 11.6 hrs after the GRB
trigger.
We do not detect any object within the refined 3.6'' Swift-XRT error circle
reported by Mao et al. (GCN #7875) to the following 3-sigma upper limits:
g' > 24.4,
r' > 24.4,
i' > 23.5,
z' > 23.5 and
J > 22.4.
Given upper limits are calibrated against USNO-B1 as well as 2MASS field
stars.
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