{
  "bibcode": "2003GCN..2275....1B",
  "body": "GRB 030528: Infrared Observations and the Proposed IR Counterpart\n\nM. Bogosavljevic, A. Mahabal, and S. G. Djorgovski (Caltech),\nreport on behalf of the Caltech-NRAO-CARA GRB collaboration:\n\nOn June 3, 2003, 08:30 UT we observed the field of the tentative\nnear-IR afterglow of GRB 030528 (Greiner et al, GCN 2271), using\nthe WIRC camera at the Palomar 200-inch Hale telescope.  A total\nof 30 min on-source exposure was obtained in the Ks band. The\naverage seeing was ~1.0\". \n\nThe proposed afterglow of GRB 030528, Chandra source #1 \n(CXOU J170400.3-223710, Butler et al., GCN 2269) is not detected\ndown to our 3-sigma detection limit of Ks~19.5, indicating a\ncontinued fading (see Greiner et al, GCN 2271), and strengthening\nits interpretation as the afterglow of GRB 030528.\n\nOur 8x8 arcmin FOV also covers Chandra sources #4, #9, #10, all\nof which are within the SXC revised error region.  All three are\ndetected.  IR images and magnitude estimates will be placed at:\n\nhttp://www.astro.caltech.edu/~milan/GRB030528/\n\nThe field also includes Chandra sources #3, #5, #8, #14, #15 and\n#17, from the additional list outside the SXC error region\n(Butler et al., GCN 2269 and ref. therein).\n\nThis message can be cited.",
  "circularId": 2275,
  "createdOn": 1054943399000,
  "email": "george@astro.caltech.edu",
  "subject": "GRB 030528: Infrared Observations and the Proposed IR Counterpart",
  "submitter": "George Djorgovski at Caltech/Palomar  <george@astro.caltech.edu>",
  "eventId": "GRB 030528"
}