GCN Circular 22388
Subject
GRB 180205A: VLT polarimetry
Date
2018-02-05T19:20:24Z (6 years ago)
From
Klaas Wiersema at U of Warwick <K.Wiersema@warwick.ac.uk>
K. Wiersema (Warwick) & S. Covino (INAF / OAB) report on behalf of the
Stargate consortium:
We observed the afterglow of GRB 180205A (Evans et al. GCN 22381;
Zheng et al. GCN 22382; Bolmer et al. GCN 22383, Tanvir et al. GCN 22384)
with the ESO Very Large Telescope equipped with FORS2. We obtained
a set of imaging polarimetry observations in R band, starting at 07:07 UT
(approximately 2.67 hours after burst). Using archival calibration data, we
find a low level of polarisation, P ~ 0.9%, similar to the majority of
late-time GRB afterglow measurements (Covino & Gotz 2016, A&AT 29, 205).
We acknowledge excellent support from the ESO staff.