{
  "bibcode": "2000GCN...764....1D",
  "body": "GRB 991208 Host Galaxy Imaging\n\nA. Diercks, J. S. Bloom, T. J. Galama, and S. R. Kulkarni report on\nbehalf of the larger Caltech-NRAO-CARA collaboration:\n\n\"We observed the field of GRB 991208 (Hurley et al. 1999, GCN #450) with\nthe with the Echellette Spectrograph and Imager (ESI) on the Keck II 10-m\nTelescope on Mauna Kea at 4 April 2000 UT.  A 1200-s Gunn r-band image\nwith 0.75 arsec seeing (FWHM) reveals a galaxy at the location (Frail et\nal. 2000, GCN #451) of the afterglow. This galaxy, the putative host of\nGRB 991208, is likely responsible for the nebular emission lines\npreviously observed spectra of the transient (Dodonov et al. 1999, GCN\n475; Bloom et al. 1999, GCN 464).  The galaxy appears extended with an\nellipticity of ~0.3 and PA= 106 +/- 6 degrees. Using differential\nastrometry with respect to our early K-band image when the transient was\nbright (Bloom et al. 1999, GCN #480), we find the GRB was 66 +/- 63 mas (1\nsigma) from the center of the galaxy; i.e. the GRB location is consistent\nwith no offset from its host.\"\n\nA 39\" x 39\" image of the field surrounding the host galaxy is posted at\n   http://astro.caltech.edu/~ad/grb991208-host.ps\n\nThis message may be cited.",
  "circularId": 764,
  "createdOn": 965171848000,
  "email": "jsb@astro.caltech.edu",
  "subject": "GRB 991208 Host Galaxy Imaging",
  "submitter": "Josh Bloom at CIT  <jsb@astro.caltech.edu>",
  "eventId": "GRB 991208"
}