GCN Circular 16437
Subject
GRB 140622A: VLT/X-shooter redshift
Date
2014-06-22T20:54:43Z (10 years ago)
From
Olga Hartoog at U of Amsterdam <O.E.Hartoog@uva.nl>
O.E. Hartoog (API/UvA), D. Malesani (DARK/NBI), R. Sanchez-Ramirez
(IAA-CSIC), A. de Ugarte Postigo (IAA-CSIC, DARK/NBI), A.J. Levan (U. of
Warwick), J.P.U. Fynbo (DARK/NBI), P.M. Vreeswijk (Weizmann), L. Kaper
(API/UvA) report on behalf of the X-shooter GRB collaboration:
We observed the field of short GRB140622A (D'Elia et al., GCN 16433) with
the VLT X-shooter spectrograph covering a spectral range 3200A to 18000A,
with a total exposure time of 2x600s. Observations started at UT 10:10:32,
~34 minutes after the trigger. The slit was positioned on the object at
RA(J2000) = 21:08:41.73, Dec(J2000) = -14:25:06.5 identified by Tanga et
al. (GCN 16435), at the border of the 2.6" XRT error circle.
We detect emission lines from this source at a redshift of z~0.959:
H-alpha, H-beta, [OII], [OIII]. It is likely that this is the host galaxy
of GRB140622A. A very faint trace is detected redwards of ~7000A. This
wavelength coincides with a Balmer jump at the host redshift.
We thank the staff at Paranal for their support in obtaining these
observations.