{
  "bibcode": "2010GCN.10422....1C",
  "body": "A. Cucchiara (PSU), R. Chornock (Harvard),D. B. Fox (PSU),\nE. Berger (Harvard), report on behalf of a larger collaboration:\n\n\"We observed the field of GRB 100213B (Vetere et al., GCN 10412)\nwith GMOS on the Gemini-North 8-m telescope starting on 2010\nFeb 14.24 (~7 hours after the burst).\n\nInside the refined XRT error circle (GCN #10416) we detect\nno new sources in a 2 min r-band acquisition image.\nOutside the XRT error circle we clearly detect the source\nreported by Malesani et al. (GCN #10413).\n\nWe then obtain 2x1200s spectra on this source at central\nwavelength 8000A. We detect [OII]3727, H-beta and [OIII]5007\nat the common redshift of z =0.604.\nAt this point is not clear whether this object is related to\nGRB 100213B.\n\n\nWe thank the Gemini staff for performing this observation, in\nparticular Tom Geballe.\"",
  "circularId": 10422,
  "createdOn": 1266155520000,
  "email": "cucchiara@astro.psu.edu",
  "subject": "GRB 100213B: Gemini-N Observations",
  "submitter": "Antonino Cucchiara at PSU  <cucchiara@astro.psu.edu>",
  "eventId": "GRB 100213B"
}