TITLE: GCN CIRCULAR NUMBER: 38139 SUBJECT: GRB 241108A: Swift-XRT observations DATE: 24/11/09 07:43:33 GMT FROM: Phil Evans at U of Leicester pae9@star.le.ac.uk
D.N. Burrows (PSU), J.P. Osborne (U. Leicester), K.L. Page (U. Leicester), V. D'Elia (SSDC & INAF-OAR), B. Sbarufatti (INAF-OAB), C. Salvaggio (INAF-OAB), M. A. Williams (PSU), S. Dichiara (PSU) and P.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team:
Swift-XRT has performed follow-up observations of the SVOM/ECLAIRs-detected burst GRB 241108A, collecting 2.9 ks of Photon Counting (PC) mode data between T0+43.8 ks and T0+50.6 ks.
One uncatalogued X-ray source has been detected, 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 1: RA (J2000.0): 123.6378 = 08:14:33.07 Dec (J2000.0): -7.0861 = -07:05:09.9 Error: 4.7 arcsec (radius, 90% conf.) Count-rate: (5.0 [+2.0, -1.6])e-3 ct s^-1 Distance: 494 arcsec from SVOM/ECLAIRs position. Flux: (2.99 [+1.17, -0.93])e-13 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/00021729.
This circular is an official product of the Swift-XRT team.
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