{
  "createdOn": 1729337628099,
  "subject": "GRB 241018A: Swift-XRT observations",
  "circularId": 37823,
  "eventId": "GRB 241018A",
  "body": "J.P. Osborne (U. Leicester), K.L. Page (U. Leicester), A. D'Ai\n(INAF-IASFPA), A. Melandri (INAF-OAR), T. Sbarrato (INAF-OAB), D.N.\nBurrows (PSU), M. A. Williams (PSU), S. Dichiara (PSU) and P.A. Evans\n(U. Leicester) reports on behalf of the Swift-XRT team:\n\nSwift-XRT has performed follow-up observations of the SVOM detected\nburst GRB 241018A (GCNs 37812, 37814; Atteia et al., Maggi et al.) \ncollecting 3.7 ks of Photon Counting (PC) mode data between T0+18.2 ks\nand T0+71.2 ks. \n\nSix uncatalogued X-ray sources have been detected in the XRT\nfield-of-view, of which one (Source 1), is at the location of the\nfading optical counterpart seen by the SVOM/VT and NOT (GCNs 37819,\n37821; Qiu et al., Malesani et al.), with the following details:\n\nSource 1:\n  RA (J2000.0):  67.9965  =  04:31:59.15\n  Dec (J2000.0): +43.0196  =  +43:01:10.5\n  Error: 4.4 arcsec (radius, 90% conf. [Enhanced position])\n  Count-rate: (8.5 [+2.6, -2.2])e-3 ct s^-1   \n  Distance: 41 arcsec from SVOM/ECLAIRs position.\n  Flux: (3.27 [+1.00, -0.84])e-13 erg cm^-2 s^-1 (observed, 0.3-10 keV)\n\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/00021724.\n\nThis circular is an official product of the Swift-XRT team.\n\n",
  "submitter": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
  "submittedHow": "email",
  "bibcode": "2024GCN.37823....1O"
}