[vsnet-grb-info 16275] GRB 150309A : Liverpool Telescope observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  17556
SUBJECT: GRB 150309A : Liverpool Telescope observations
DATE:    15/03/10 11:07:36 GMT
FROM:    Andrea Melandri at INAF-OAB  <andrea.melandri at brera.inaf.it>

A. Melandri (INAF-OAB), D. Kopac (LJMU), R. J. Smith (LJMU), C. G. Mundell (U. Bath) and A. Gomboc (U. Ljubljana), on behalf of a large collaboration report:

The 2-m Liverpool Telescope robotically followed up Swift GRB 150309A (Cummings et al., GCN 17553) at 23:06:37 UT (~3.5 min after the burst trigger).

No optical counterpart is detected at the enhanced XRT error circle (Osborne et al., GCN 17555) down to r > 19.5 mag (~37 min after burst).