{
  "bibcode": "2006GCN..5240....1P",
  "body": "Kim Page, Mike Goad & Andy Beardmore (U. Leicester) report on behalf of\nthe Swift-XRT team:\n\nWe have analysed the first 3 orbits of X-ray data obtained for GRB 060607\n(BAT trigger 213823; Ziaeepour et al., GCN 5233).  \n\nThe data show 3 flares, superimposed on a decay of alpha_1 = 1.09 +/-\n0.04. Around 740 seconds after the trigger, the slope flattens, becoming\nalpha_2 = 0.45 +/- 0.03.\n\nThe flares in the WT data show spectral evolution. The later PC data are\nwell-fitted by a single power-law with Gamma = 1.64 +/- 0.07, with excess\nNH above the Galactic value. Taking the redshift to be 3.082 (Ledoux et\nal; GCN 5237), the intrinsic NH is (7.9 +3.8/-3.5)e21 cm^-2.\n\nAssuming the shallow decay of alpha_2 = 0.37 continues, the count rate is \nestimated to be 0.49 count s^-1 at 24 hours. This corresponds to an \nobserved (unabsorbed) flux of 2.22e-11 (2.44e-11) erg cm^-2 s^-1.\n\nThis circular is an official product of the Swift-XRT team.",
  "circularId": 5240,
  "createdOn": 1149685812000,
  "email": "kpa@star.le.ac.uk",
  "subject": "GRB 060607: Swift-XRT Team refined analysis",
  "submitter": "Kim Page at U.of Leicester  <kpa@star.le.ac.uk>",
  "eventId": "GRB 060607"
}