GCN Circular 38949

M. A. Williams (PSU), S. Dichiara (PSU), J.A. Kennea (PSU), J.P.
Osborne (U. Leicester), K.L. Page (U. Leicester), A.P. Beardmore (U.
Leicester), M. Perri (SSDC & INAF-OAR), V. D'Elia (SSDC & INAF-OAR), B.
Sbarufatti (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 INTEGRAL-detected
burst GRB 250114B, collecting  5.3 ks of Photon Counting (PC) mode data
between T0+11.3 ks and T0+44.6 ks. 

One uncatalogued X-ray source has been detected within the estimated
3-sigma INTEGRAL error region (197 arcsec), 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 2:
  RA (J2000.0):  48.8582  =  03:15:25.96
  Dec (J2000.0): -2.2940  =  -02:17:38.2
  Error: 7.6 arcsec (radius, 90% conf.)
  Count-rate: (2.62 [+1.04, -0.84])e-3 ct s^-1	 
  Distance: 81 arcsec from INTEGRAL position.
  Flux: (1.33 [+0.53, -0.43])e-13 erg cm^-2 s^-1 (observed, 0.3-10 keV)

Two uncatalogued sources were also detected too far from the GRB
position to be likely afterglow candidates.

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/00021756.

This circular is an official product of the Swift-XRT team.