{
  "bibcode": "2004GCN..2683....1K",
  "body": "D.L. Kaplan (MIT) and E. Berger (Carnegie Observatories) report:\n                                                                                            \n\"We again imaged the position of the XMM-Newton X-ray source (GCN #2678),\nlocalized inside the error circle of GRB 040827 (GCN #2672), with the\nPANIC instrument on the Magellan Baade 6.5-m Telescope.  A total of 36\nminutes were obtained in the Ks-band on Aug. 28.97 UT with a seeing of\nabout 1\".  A comparison to images obtained on the previous night by\nGladders and Berger (GCN #2681) reveals that XMM-1 has not faded and\nremains steady at Ks~19.4 mag.  XMM-2 appears fainter by about 0.5 mag,\nbut this may be due to the poorer seeing conditions (1\" compared to 0.55\"\non Aug. 28.02 UT) and the extended nature of this source.  The lack of\nvariability (see also GCN #2682) casts doubt on the identity of XMM-1 as\nthe afterglow of GRB 040827.  Further observations of XMM-2 in the NIR \nare encouraged.\"",
  "circularId": 2683,
  "createdOn": 1093748902000,
  "email": "eberger@ociw.edu",
  "subject": "GRB 040827: 2nd epoch of Magellan K-band imaging",
  "submitter": "Edo Berger at Carnegie Obs  <eberger@ociw.edu>",
  "eventId": "GRB 040827"
}