GCN Circular 9403
Subject
GRB 090519: NOT afterglow candidate
Date
2009-05-19T22:32:39Z (15 years ago)
From
Daniele Malesani at Dark Cosmology Centre, Niels Bohr Inst <malesani@astro.ku.dk>
C.C. Thoene (INAF/Brera), D. Malesani (DARK/NBI), A.J. Levan (Univ.
Warwick), P. Jakobsson (Univ. Iceland), J. Hjorth (DARK/NBI), N.R.
Tanvir (Univ. Leicerster), report on behalf of a larger collaboration
We observed the field of GRB 090519 (Perri et al., GCN 9400) with the
NOT equipped with ALFOSC.
At the edge of the XRT error circle, we detect a fading source at
coordinates (J2000):
RA = 09:29:07.0
Dec = +00:10:49.1
with an error of ~0.5". The source faded by ~0.3 +- 0.10 mag between
19.8 and 44.4 min after the GRB, suggesting that this is indeed the
afterglow of GRB 090519. A (fainter) object is seen at the position of
the candidate in the SDSS, which may be a bright host galaxy. On May
19.897 UT, the source had R ~ 21.6.