{
  "bibcode": "2009GCN..8984....1B",
  "body": "E. Berger (Harvard) reports:\n\n\"Inspection of archival Sloan Digital Sky Survey images reveals a faint\n(and apparently extended) object near the position of the optical\nafterglow (GCN 8979) of GRB 090313 (GCN 8980).  The object is located at:\n\tRA = 13:13:36.08\n\tDEC = 08:05:51.06\t(J2000)\nwhich is 2.3\" away from the optical afterglow position provided by\nChornock et al. (GCN 8979).  The SDSS model magnitudes of this object are:\n\tg = 22.8+/-0.3\n\tr = 21.6+/-0.16\n\ti = 21.1+/-0.18\n\tz = 20.7+/-0.4\n\nA much brigher galaxy is located 17.8\" away from the optical afterglow\nposition at:\n\tRA = 13:13:35.29\n\tDEC = 08:05:38.54\t(J2000)\nwhich we consider to be the galaxy mentioned by Chornock et al. (given its\nbrightness).  The SDSS model magnitudes of this galaxy are:\n\tu = 17.07+/-0.01\n\tg = 16.02+/-0.01\n\tr = 15.57+/-0.01\n\ti = 15.32+/-0.01\n\tz = 15.14+/-0.01\n\nA direct determination of the afterglow redshift is required in order to\ndetermine which of the two objects is the host galaxy.\"",
  "circularId": 8984,
  "createdOn": 1236950763000,
  "email": "eberger@cfa.harvard.edu",
  "subject": "GRB 090313: SDSS object underlying the optical afterglow position",
  "submitter": "Edo Berger at Harvard  <eberger@cfa.harvard.edu>",
  "eventId": "GRB 090313"
}