{
  "bibcode": "2013GCN.15267....1H",
  "body": "S. T. Holland (STScI)\nreports on behalf of the Swift/UVOT team:\n\n     Deep Swift/UVOT imaging taken between 157 s and 184.8 ks after\nthe BAT trigger (Lien et al, 2013, GCNC 15246) shows a faint source at\nthe location of the GROND detection (Sudilovsky et al. 2013, GCNC\n15247).  This source has a preliminary magnitude, on the UVOT\nphotometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373),\nof white = 22.9 +/- 0.3 mag and is detected with a significance of 4.7\nsigma.  This magnitude has not been corrected for the expected\nextinction due to the Galactic reddening along the line of sight to\nthis burst of E(B-V) = 0.02 mag (Schlafly et al. 2011, ApJS, 737,\n103).  The total white exposure time is 18 ks.  There is no evidence\nfor variability.\n\n     The probability of finding a galaxy of this apparent luminosity\nwithin the UVOT-enhanced XRT error circle (Evans et al. 2013, GCNC\n15251) is 0.01 using the method of Bloom et al. (2002, AJ, 423, 1111).\nThe positional coincidence and lack of variability suggest that this\nis the host galaxy of GRB 130925A.  There is no evidence in the UVOT\ndata that this source has any extended structure.",
  "circularId": 15267,
  "createdOn": 1380306163000,
  "email": "sholland@stsci.edu",
  "subject": "GRB 130925A: Swift/UVOT Detection of the Host Galaxy",
  "submitter": "Stephen Holland at STScI  <sholland@stsci.edu>",
  "eventId": "GRB 130925A"
}