[vsnet-grb-info 4327] GRB 070220 : Faulkes Telescope North optical limit

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  6115
SUBJECT: GRB 070220 : Faulkes Telescope North optical limit
DATE:    07/02/20 06:15:07 GMT
FROM:    Andrea Melandri at Liverpool John Moores U  <axm at astro.livjm.ac.uk>

A. Melandri (Liverpool JMU), A. Gomboc (Ljubljana), R. J. Smith,
C. G. Mundell, C. Guidorzi, D. Carter, I. A. Steele, C. J. Mottram,
D. F. Bersier, S. Kobayashi, M. F. Bode (Liverpool JMU), P. O'Brien,
E. Rol, N. Bannister (Leicester) report


The 2-m Faulkes Telescope North robotically followed up GRB070220
(Stamatikos et al., GCN 6114, trigger=261299) beginning ~2 minutes
after the GRB trigger time (UT:04:44:33).

No new object has been detected inside the XRT error circle (Stamatikos
et al., GCN 6114) down to a limiting magnitude of R~19.5 for a coadded
frame with a total exposure time of 420 sec, at a mean epoch of 28 min
after the burst (comparison with respect to the USNO B1 catalog).

Further observations are ongoing.