GCN Circular 11904
Subject
GRB 110407A: NOT optical observations
Date
2011-04-08T01:20:18Z (13 years ago)
From
Daniele Malesani at Dark Cosmology Centre, Niels Bohr Inst <malesani@dark-cosmology.dk>
Daniele Malesani (DARK/NBI), Paul Vreeswijk (Univ. Iceland), Dong Xu
(WIS), Johan Fynbo (DARK/NBI), Pall Jakobsson (Univ. Iceland), Ingvar
Svardh (NOT), and Martin Nielsen (NOT), report on behalf of a larger
collaboration:
We observed the field of GRB 110407A (Wolf et al., GCN 11895) with the
Nordic Optical Telescope equipped with MOSCA. Observations were carried
out in the R band, with a seeing of ~1.6", for a total observation time
of 50 minutes. The mean time of the observation was Apr 7.943 UT (8.52
hr after the GRB).
At the position of the optical and X-ray transient (Chuang et al., GCNs
11899, 11901; Evans et al., GCN 11903), we detect a source close to the
detection limit. Its magnitude is R = 23.2 +- 0.20 (Vega) based on
calibration against the SDSS r band.