GCN Circular 17926
Subject
GRB 150608A: Swift-XRT follow-up observations
Date
2015-06-15T13:48:04Z (9 years ago)
From
Maria Grazia Bernardini at INAF/Brera <grazia.bernardini@brera.inaf.it>
M.G. Bernardini (INAF-OAB), P. D'Avanzo (INAF-OAB) and A. Melandri
(INAF-OAB)
report on behalf of the Swift-XRT team:
A second epoch of XRT data was collected on the field of the MAXI-detected
burst: GRB 150608A (Arimoto, et al., GCN Circ. 17912) on 2015 June 13.
The observations consist of 2 ks of PC mode data, from T0+389 ks to
T0+395 ks.
The X-ray source reported in GCN Circ. 17917, Bernardini et al.,
measured at
a mean count rate of 8.3e-01 count/sec (0.3-10 keV) in the first epoch
of XRT
observations has faded to a mean count rate of (7.1e-03+/-2.2e-03)
count/sec
(0.3-10 keV) in the second epoch. Assuming a power-law decay, the
corresponding
decay index is alpha=1.28 (-0.11, +0.17). We therefore confirm that
this is
the X-ray afterglow of GRB 150608A.
This circular is an official product of the Swift-XRT team.