GCN Circular 9108
Subject
GRB 090407: VLT observations
Date
2009-04-08T01:02:57Z (15 years ago)
From
Daniele Malesani at Dark Cosmology Centre, Niels Bohr Inst <malesani@astro.ku.dk>
Daniele Malesani and Johan Peter Uldall Fynbo report on behalf of a
larger collaboration:
We observed the field of GRB 090407 (Ziaeepour et al., GCN 9101) with
the ESO VLT equipped with FORS2. Observations were carried out with mean
time Apr 8.0 UT (13.7 hr after the GRB), partially during evening twilight.
Inside the X-ray error circle (Evans et al., GCN 9105), no source is
detected down to limiting magnitudes R > 23.8 and z(AB) > 23.8, based on
archival zeropoints (accurate up to ~0.2 mag).
We encourage deeper observations, possibly in the near infrared.
We acknowledge significant support from the ESO staff at Paranal, in
particular Gianni Marconi and Elena Mason.