{
  "bibcode": "2009GCN.10176....1C",
  "body": "R. Chornock and E. Berger (Harvard) report:\n\nWe obtained spectra of the DSS galaxy coincident with the XRT source (GCN 10173)\nseen in the Swift observations of the short GRB 091117 (GCN 10171) using GMOS on\nGemini-North.  A pair of 1800s exposures using the R400 grating were taken\nstarting at 07:27 UT on Nov. 19.  Numerous emission lines are present at\nz=0.096.  The slit was aligned through both the nucleus and the point source on\nthe spiral arm (GCN 10174).  The off-nuclear point source exhibits the\nhigh-equivalent-width nebular emission lines expected of an H II region and is\ntherefore unlikely to be related to the afterglow of GRB 091117.  In addition,\nthe nuclear spectrum shows a broad component to the H-alpha line (FWHM ~ 1670\nkm/sec), indicative of an AGN.  The AGN could also be responsible for the\nobserved X-ray emission.",
  "circularId": 10176,
  "createdOn": 1258628501000,
  "email": "chornock@astro.berkeley.edu",
  "subject": "GRB 091117: Gemini-North spectroscopy of DSS galaxy",
  "submitter": "Ryan Chornock at UC Berkeley  <chornock@astro.berkeley.edu>",
  "eventId": "GRB 091117"
}