GCN Circular 37707
Subject
GRB 241002B: Swift-XRT observations
Date
2024-10-04T07:05:40Z (5 months ago)
From
Phil Evans at U of Leicester <pae9@star.le.ac.uk>
Via
email
V. D'Elia (SSDC & INAF-OAR), B. Sbarufatti (INAF-OAB), J.A. Kennea
(PSU), D.N. Burrows (PSU), M. A. Williams (PSU), A.P. Beardmore (U.
Leicester), J.P. Osborne (U. Leicester), C. Salvaggio (INAF-OAB) and
P.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team:
Swift-XRT has performed follow-up observations of the
Fermi/GBM-detected burst GRB 241002B, collecting 2.7 ks of Photon
Counting (PC) mode data between T0+134.3 ks and T0+146.1 ks.
One uncatalogued X-ray source has been detected consistent with being
within 8.2 arcsec of the candidate optical counterpart detected by
GOTO: GOTO24gpc/AT2024xbg (Kumar et al., GCN Circ. 37694), it is below
the RASS limit and shows no definitive signs of fading. Therefore, at
the present time we cannot confirm this as the afterglow. Details of
this source are given below:
Source 4:
RA (J2000.0): 328.3201 = 21:53:16.82
Dec (J2000.0): -58.9471 = -58:56:49.6
Error: 3.2 arcsec (radius, 90% conf. [Enhanced position])
Count-rate: 0.0246 [+0.0037, -0.0035] ct s^-1
Distance: 3 arcsec from GOTO position.
Flux: (1.12 [+0.17, -0.16])e-12 erg cm^-2 s^-1 (observed, 0.3-10 keV)
The results of the XRT-team automatic analysis of the XRT observations,
including a position-specific upper limit calculator, are available at
https://www.swift.ac.uk/ToO_GRBs/00021721.
This circular is an official product of the Swift-XRT team.