{
  "bibcode": "2012GCN.13245....1C",
  "body": "A. Cucchiara (UCSC/UCO Lick), A. Levan (U Warwick), D. B. Fox (PennState),\nN. R. Tanvir (U. Leicester) report on behalf of a larger collaboration reports:\n\nOn April 22.33 UT (~50 minutes after the BAT trigger) we observed the field \nof GRB 120422A (Troja et al., GCN 13243) using GMOS Spectrograph on \nthe Gemini-North 8-m telescope.  \n\nIn our acquisition image of 240s in i' band an optical candidate was identified at:\n\nRA: 09:07:38.38\nDec: +14:01:07.5\n\nwith an uncertainty of 0.3\" in each direction.\nUsing three SDSS stars in the field we estimate a magnitude of \n\ni'=19.03 +- 0.15 \n\nWe also noticed just outside the XRT error circle the presence of \nthe SDSS (DR8) galaxy SDSS J090738.51+140108.3.\n\nA subsequent spectrum of 2x900s, covering the wavelength range 6000-10000 \ndoes not present evident absorption features. \nIf the SDSS galaxy is associated with GRB 120422A then its brightness would \nsuggest a moderately low redshift (z<1).\nFurther analysis is in progress.\n\nWe thank the Gemini-North staff for their prompt support.",
  "circularId": 13245,
  "createdOn": 1335091499000,
  "email": "acucchia@ucolick.org",
  "subject": "GRB 120422A: Gemini observations",
  "submitter": "Antonino Cucchiara at UCSC/UCO Lick  <acucchia@ucolick.org>",
  "eventId": "GRB 120422A"
}