GCN Circular 7303
Subject
GRB 080212: GROND detects afterglow
Date
2008-02-13T08:08:18Z (16 years ago)
From
Jochen Greiner at MPI <jcg@mpe.mpg.de>
A. Kuepcue Yoldas, A. Yoldas, J. Greiner, T. Kruehler (all MPE Garching),
A. Rossi (Tautenburg Obs) report for the GROND team:
We observed the field of GRB 080212 (trigger 303105) detected by Swift/BAT
(Ziaeepour et al. 2008, GCN 7296) 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. 13, at 05:30 UT
(12 hrs after the GRB), when the GRB location was becoming visible at
20 degrees above horizon.
We detect a new source in all filters, suggesting the Ly-break being below the
g'-band (and thus z<3.5). It is clearly separated from the galaxy mentioned by
Berger et al. (2008, GCN 7294). The position is
RA (2000.0) = 15:24:35.4
Decl (2000.0) = -22:44:30
At 6:36 UT we measure i'=22.6 mag. No statement about variability can be
made at this stage. GROND observations are continuing.