GCN Circular 8039
Subject
GRB 080727A: VLT upper limits
Event
Date
2008-07-28T08:05:37Z (17 years ago)
From
Daniele Malesani at Dark Cosmology Centre, Niels Bohr Inst <malesani@astro.ku.dk>
D. Malesani (DARK), P. Jakobsson (Univ. Hertfordshire), A. J. Levan
(Univ. Warwick), E. Rol (Univ. Leicester), J. P. U. Fynbo (DARK), report
on behalf of a larger collaboration.
We observed the field of GRB 080727A (Immler et al., GCN 8021) with the
ESO VLT equipped with FORS1. Observations started on 2008 Jul 27.979 UT,
17.5 hr after the burst, for a total exposure time of 900 s in the R filter.
Inside the refined XRT error circle (Evans et al., GCN 8025), we detect
no new source down to a limiting magnitude R~26. Calibration was based
on tabulated zeropoints and is in rough agreement with USNO-B1 stars.
We acknowledge kind support from the observing staff at Paranal,
particularly Suzanna Randall, Karla Aubel, and Alain Smette.