{
  "bibcode": "2004GCN..2591....1C",
  "body": "GRB 040511: Optical Observations\n\nHsiao-Wen Chen (MIT), Nidia Morrell (Las Campanas Observatory), Joshua S.\nBloom (Harvard/CfA), Jason X. Prochaska (UCO/Lick) report on behalf of the\nGRAASP (GRB Afterglows as Probes) Collaboration:\n\n\"We have obtained optical images of the field around GRB 040511\n(Dullinghan et al., GCN #2588) using the SITe#3 CCD imager and Rc filter\non the 40\" Swope telescope at the Las Campanas Observatory.  The camera\nhas a plate scale of 0.435 arcsec per pixel and covers an 14.7' x 20'\nfield of view. The observations were carried out starting at 00:15 UT 12\nMay 2004 (~11 hours after the burst).  Three exposures of 300 sec duration\nwere taken under photometric conditions.  The 5-sigma depth of the stacked\nimage is R~23.4 over a 2\"-diameter aperture.\n\nA comparison of our stacked image with the DSS/POSS2 red plate shows no\nnew source to the limit of the plate Rc=20.8.\"\n\nA finding chart and all the imaging data are publicly available at\nhttp://www.graasp.org/.\n\nThis message may be cited.",
  "circularId": 2591,
  "createdOn": 1084380618000,
  "email": "jbloom@cfa.harvard.edu",
  "subject": "GRB 040511: Optical Observations",
  "submitter": "Josh Bloom at Harvard/CFA  <jbloom@cfa.harvard.edu>",
  "eventId": "GRB 040511"
}