{
  "bibcode": "2012GCN.13479....1G",
  "body": "A. Nicuesa Guelbenzu, S. Klose (both TLS Tautenburg), and J. Greiner (MPE \nGarching) report on behalf of the GROND team:\n\nWe observed the field of GRB 120714A (Swift trigger 526593; Saxton et al., \nGCN 13464) simultaneously in g'r'i'z'JHKs with GROND (Greiner et al. 2008, \nPASP 120, 405) mounted at the 2.2 m MPG/ESO telescope at La Silla \nObservatory (Chile).\n\nObservations started at 23:12 UT on 2012-07-14, 15.5 hrs after the GRB \ntrigger, at a airmass of 1.3, and a mean seeing of 1.6\". We do not find\nany source in the XRT error circle (Burrows et al., GCN 13466). Based on \nan exposure of 1500 seconds in the optical and 1200 seconds in the NIR, \nat a mean time of 00:00 UT we derive the following upper limits (all AB \nmagnitudes):\n\n  g' > 23.9 \n  r' > 23.9 \n  i' > 23.1 \n  z' > 23.1 \n  J  > 20.9\n  H  > 20.2\n  Ks > 19.2.\n\nThe magnitudes are derived based on GROND zeropoints (g'r'i'z') and 2MASS \nstars (JHK). We note that the Galactic reddening along the line of sight \nis E_(B-V)= 0.06 mag (Schlegel et al. 1998).",
  "circularId": 13479,
  "createdOn": 1342342535000,
  "email": "jcg@mpe.mpg.de",
  "subject": "GRB 120714A: GROND upper limits",
  "submitter": "Jochen Greiner at MPI  <jcg@mpe.mpg.de>",
  "eventId": "GRB 120714A"
}