{
  "submitter": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
  "createdOn": 1760622716661,
  "body": "A.P. Beardmore (U. Leicester), A. Melandri (INAF-OAR), T. Sbarrato\n(INAF-OAB), P. D'Avanzo (INAF-OAB), J.A. Kennea (PSU), D.N. Burrows\n(PSU), S. Lanava (PSU), J.P. Osborne (U. Leicester) and P.A. Evans (U.\nLeicester) reports on behalf of the Swift-XRT team:\n\nWe have analysed 6.2 ks of Photon Counting (PC) mode XRT data for GRB\n251014A, collected between T0+101.1 ks and T0+174.7 ks. \n\nThree uncatalogued X-ray sources have been detected within the\nestimated 3-sigma Swift-BAT error region (296 arcsec), however none of\nthem is above the RASS limit or shows definitive signs of fading.\nTherefore, at the present time we cannot identify which, if any, is the\nafterglow. Details of these sources are given below:\n\nSource 5:\n  RA (J2000.0):  111.7316  =  07h 26m 55.58s\n  Dec (J2000.0): +6.4150  =  +06d 24' 53.9\"\n  Error: 6.7 arcsec (radius, 90% conf.)\n  Count-rate: (2.33 [+0.88, -0.72])e-3 ct s^-1\t \n  Distance: 1 arcsec from Swift-BAT position.\n  Flux: (1.11 [+0.42, -0.34])e-13 erg cm^-2 s^-1 (observed, 0.3-10 keV)\n\nSource 8:\n  RA (J2000.0):  111.6918  =  07h 26m 46.04s\n  Dec (J2000.0): +6.4252  =  +06d 25' 30.7\"\n  Error: 6.1 arcsec (radius, 90% conf.)\n  Count-rate: (2.25 [+0.88, -0.72])e-3 ct s^-1\t \n  Distance: 148 arcsec from Swift-BAT position.\n  Flux: (7.1 [+2.8, -2.3])e-14 erg cm^-2 s^-1 (observed, 0.3-10 keV)\n\nSource 9:\n  RA (J2000.0):  111.7868  =  07h 27m 08.82s\n  Dec (J2000.0): +6.3731  =  +06d 22' 23.3\"\n  Error: 5.6 arcsec (radius, 90% conf.)\n  Count-rate: (1.42 [+0.73, -0.56])e-3 ct s^-1\t \n  Distance: 247 arcsec from Swift-BAT position.\n  Flux: (4.8 [+2.5, -1.9])e-14 erg cm^-2 s^-1 (observed, 0.3-10 keV)\n\nSeven uncatalogued sources were also detected too far from the GRB\nposition to be likely afterglow candidates.\n\nThe results of the XRT-team automatic analysis of the XRT observations,\nincluding a position-specific upper limit calculator, are available at\nhttps://www.swift.ac.uk/ToO_GRBs/01403878.\n\nThis circular is an official product of the Swift-XRT team.\n\n",
  "eventId": "GRB 251014A",
  "subject": "GRB 251014A: Swift-XRT observations",
  "submittedHow": "email",
  "bibcode": "2025GCN.42307....1B",
  "circularId": 42307
}