GCN Circular 7279
Subject
GRB 080207: GROND upper limits
Date
2008-02-09T22:48:33Z (16 years ago)
From
Jochen Greiner at MPI <jcg@mpe.mpg.de>
A. Kuepcue Yoldas, A. Yoldas, J. Greiner, T. Kruehler (all MPE Garching),
S. Klose (Tautenburg Obs), G. Szokoly (Budapest Univ.) report for the
GROND team:
We observed the field of GRB 080207 detected by Swift/BAT (Racusin et al.
2008, GCN 7264) simultaneously in grizJHK with GROND (Greiner et al. 2008,
astro-ph/0801.4801), mounted at the 2.2m MPI/ESO telescope at La Silla (Chile).
Observations started on Feb. 08, at 06:35 UT, about 9 hrs after the GRB,
under poor conditions (particularly high humidity and airmass of 1.7-1.34).
No source is detected within the 3-sigma XRT error circle (Beardmore et al.
2008, GCN 7265). Comparison of the co-added images (with 3440 sec effective
exposure time in griz and 2400 seconds in JHK) to the Digital Sky Survey
and 2MASS yields the following 3-sigma upper limits:
g' > 23.9, r' > 23.8, i' > 23.5, z' > 22.8, J > 21.0, H > 19.7, K > 19.0.