{
  "bibcode": "2010GCN.10395....1B",
  "body": "E. Berger, R. Chornock (Harvard), N. Tanvir (U. Leicester), A.J. Levan\n(U. Warwick), D. Fox, A. Cucchiara (PSU), A. Fruchter and J. Graham\n(STScI) report on behalf of a larger collaboration:\n\n\"We observed the field of the short GRB 100206A (GCN #10376) with GMOS\non the Gemini-North 8-m telescope starting on 2010 Feb 7.215 (15.7\nhours after the burst).  Observations were obtained in the i- and\nz-band filters for a total of 1200 sec in each filter.  Inside the\nrefined XRT error circle (GCN #10378) we detect the candidate optical\nafterglow detected with the WHT (GCN #10386).  Within the photometric\nuncertainties the source does not appear to fade in either filter\nbetween the two observation (7 and 15.7 hours) and it is thus unlikely\nto be the optical afterglow.  However, since the source is located\nwithin the XRT error circle we consider it to be a potential host\ngalaxy, likely at a higher redshift than the bright galaxy at z=0.41\nlocated just outside the error circle (GCN #10389).\"",
  "circularId": 10395,
  "createdOn": 1265562820000,
  "email": "eberger@cfa.harvard.edu",
  "subject": "GRB 100206A: Gemini-North observations",
  "submitter": "Edo Berger at Harvard  <eberger@cfa.harvard.edu>",
  "eventId": "GRB 100206A"
}