{
  "bibcode": "2014GCN.16458....1T",
  "body": "M. Tanga, J. F. Graham (both MPE Garching), D. A. Kann (TLS Tautenburg),\nand J. Greiner (MPE Garching) report on behalf of the GROND team:\n\nWe observed the field of GRB 140626A (Swift trigger 602604; Cummings et\nal., GCN #16456) simultaneously in g'r'i'z'JHK with GROND (Greiner et al.\n2008, PASP 120, 405) mounted at the 2.2 m MPG telescope at ESO La Silla\nObservatory (Chile).\n\nObservations started at 00:45:12 UT on June 26, 2014, 12 minutes after the\nGRB trigger. They were performed at an average seeing of 2.4 and at an\naverage airmass of 2.5.\n\nWe detect a source at the north-eastern edge of the the Swift-XRT error\ncircle reported by Cummings et al., GCN #16456 at RA (J2000) =\n05:09:30.79, Dec. (J2000) = -82:37:50.2, at AB magnitude:\n\ng' = 21.9 +/- 0.1 mag,\nr' = 20.9 +/- 0.1 mag,\ni' = 20.4 +/- 0.1 mag, and\nz' = 19.8 +/- 0.1 mag.\n\nThis object is not detected in the DSS. We propose it to be the afterglow\nof GRB 140626A but at this time cannot ascertain fading.\n\nThe magnitude was derived based on calibrating the image against the GROND\nzeropoint and is not corrected for the Galactic foreground extinction\ncorresponding to a reddening of E_(B-V)= 0.15 mag in the direction of the\nburst (Schlegel et al. 1998).\n\n[GCN OPS NOTE(26jun14): Per author's request, the typo of the observation\ndate in the second paragraph was changed from Jun 22 to Jun 26.]",
  "circularId": 16458,
  "createdOn": 1403750630000,
  "email": "kann@tls-tautenburg.de",
  "subject": "GRB 140626A: GROND Afterglow Candidate",
  "submitter": "Alexander Kann at TLS Tautenburg  <kann@tls-tautenburg.de>",
  "eventId": "GRB 140626A"
}