{
  "bibcode": "2010GCN.11325....1P",
  "body": "C. Pagani (U. Leicester) and W. H. Baumgartner (GSFC/UMBC) report on\nbehalf of the Swift-XRT team:\n\nWe have analysed 5.5 ks of XRT data for GRB 101008A (Baumgartner et al.\nGCN Circ. 11318), from 3169 s to 26.9 ks after the BAT trigger. The data\nare entirely in Photon Counting (PC) mode. The enhanced XRT position for\nthis burst was given by Beardmore et al. (GCN. Circ 11321).\n\nThe light curve can be modelled with a power-law decay with a decay\nindex of alpha=1.2 (+0.5, -0.3).\n\nA spectrum formed from the PC mode data can be fitted with an absorbed\npower-law with a photon spectral index of 2.0 (+/-0.5). The best-fitting\nabsorption column is 2.8 (+2.0, -1.4) x 10^21 cm^-2, in excess of the\nGalactic value of 1.4 x 10^21 cm^-2 (Kalberla et al. 2005). The counts\nto observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from\nthis spectrum is 4.5 x 10^-11 (6.8 x 10^-11) erg cm^-2 count^-1.\n\nIf the light curve continues to decay with a power-law decay index of\n1.2, the count rate at T+24 hours will be 1.3 x 10^-3 count s^-1,\ncorresponding to an observed (unabsorbed) 0.3-10 keV flux of 5.9 x\n10^-14 (8.9 x 10^-14) erg cm^-2 s^-1.\n\nThe results of the XRT-team automatic analysis are available at\nhttp://www.swift.ac.uk/xrt_products/00435903.\n\nThis circular is an official product of the Swift-XRT team.",
  "circularId": 11325,
  "createdOn": 1286613360000,
  "email": "cp232@star.le.ac.uk",
  "subject": "GRB 101008A: Swift-XRT refined analysis",
  "submitter": "Claudio Pagani at U of Leicester  <cp232@star.le.ac.uk>",
  "eventId": "GRB 101008A"
}