GCN Circular 6602
Subject
GRB 070704 : Liverpool Telescope Observations
Event
Date
2007-07-06T12:50:15Z (19 years ago)
From
Andrea Melandri at Liverpool John Moores U <axm@astro.livjm.ac.uk>
A. Melandri (Liverpool JMU), E. Rol, N. Tanvir (U. Leicester)
report on behalf of the RoboNet GRB collaborationon:
We observed the field of GRB 070704 (trigger=283791, Sakamoto
et al., GCN 6594) with the 2-m Liverpool Telescope about 4.2
hours after the trigger time.
At the revised XRT position (Godet & Sakamoto, GCN 6598) we do
not detect any new object in stacked images down to:
Filter t_mid (hr from GRB) Tot_Exp (s) Lim
--------------------------------------------------------------
r' 4.26 1800 23.0
i' 5.10 1800 23.3
--------------------------------------------------------------
Magnitudes were calibrated vs R2 and I USNO-B1 magnitude for
few selected stars.