{
  "bibcode": "2010GCN.10514....1A",
  "body": "Paulo Afonso (MPE Garching), Adria Updike (Clemson University), Marco\nNardini, Robert Filgas, Abdullah Yoldas, and Jochen Greiner (MPE Garching)\nreport on behalf of the GROND team:\n\nWe observed the field of GRB 100316D (Swift trigger 416135; Stamatikos et\nal., GCN 10496) simultaneously in g'r'i'z'JHK with GROND (Greiner et al.\n2008, PASP 120, 405) mounted at the 2.2 m ESO/MPI telescope at La Silla\nObservatory (Chile).\n\nObservations started at 00:28 UT on March 17, 11.66 hours after the GRB\ntrigger, and are continuing. They were performed at an average seeing of\n1\" and at an average airmass of 1.1.\n\nWe detect what appears to be a bright point on the edge of the extended\nobject noted by Sakamoto et al. (GCN 10511) within the XRT error circle. \nThis is consistent with the source identified by Vergani et al. (GCN\n10512).  The source is detected in all bands, suggesting a redshift < 3.5.\n We cannot yet determine if this source is related to the GRB.\n\nFurther observations are required to establish variability, and to check\nwhether the optical bands show similarities to GRB 060218 - SN 2006aj as\nreported by Sakamoto et al. (GCN 10511) for the gamma ray and x-ray bands.",
  "circularId": 10514,
  "createdOn": 1268801233000,
  "email": "aupdike@clemson.edu",
  "subject": "GRB 100316D: GROND Detection of the Optical/NIR Afterglow Candidate",
  "submitter": "Adria C. Updike at Clemson U  <aupdike@clemson.edu>",
  "eventId": "GRB 100316D"
}