GCN Circular 7202
Subject
GRB 080120: GROND confirmation of the optical afterglow
Date
2008-01-22T09:10:16Z (16 years ago)
From
Thomas Kruehler at MPE/MPI <kruehler@mpe.mpg.de>
T. Kruehler, J. Greiner, S. McBreen, S. Loew, A. Kuepcue-Yoldas, C. Clemens, A. Yoldas
(all MPE Garching) report on behalf of the GROND team:
We observed the field of the INTEGRAL burst GRB 080120 (Mereghetti et al. 2008, GCN #7194) with the 2.2 m MPI/ESO telescope equipped with the multi-channel imager GROND.
Observations started at 07:04 UTC on the 22nd of January at an airmass of 2.5 and seeing around 1.0".
The optical/NIR source (Kruehler et al. 2008, GCN #7197, P. Schady et al. 2008, GCN #7198) inside the XRT-error circle (Sbarufatti et al. 2008, GCN #7195) is still detected, and clearly fading. Fitting a power-law to the two epochs yields a slope around 1.5.
A finding chart will be posted at: www.mpe.mpg.de/~jcg/grb080120.html