{
  "bibcode": "2011GCN.12418....1M",
  "body": "D. Malesani (DARK/NBI), A.J. Levan (Univ. Warwick), N.R. Tanvir, K. \nWiersema (Univ. Leicester), J. Hjorth, J. P. U. Fynbo (DARK/NBI), report \non behalf of a larger collaboration.\n\nWe observed the surroundings of the galaxy ESO 580- G 049, which is \noverlapping the BAT error circle of GRB 111005A (Saxton et al., GCN \n12413; Barthelmy et al., GCN 12415; Levan et al., GCN 12414). \nObservations were carried out with the acquisition camera of the \nX-shooter spectrograph mounted on the ESO VLT. Images were taken in the \nz and I bands, and were carried out deep in twilight. We note that our \ndata only cover a small fraction of the BAT error circle. The time of \nthe observation is October 5, 23:40 UT (i.e., 15.6 hr after the GRB), \nand the exposure time was 30 s in both z and I.\n\nOur data reach somewhat deeper than the DSS survey; our limiting \nmagnitude is I ~ 20.5 (assuming I = 16.3 for the star at RA = \n14:53:07.299, Dec = -19:43:43.63). No new sources can be recognized in \ncomparison to the DSS survey, in agreement with previous reports (Levan \net al., GCN 12416; Nardini et al., GCN 12417). A few objects (fainter \nthan the DSS limit) can be seen consistent with the galaxy disk, \nalthough their association with the GRB cannot be ascertained at this stage.\n\nWe acknowledge the excellent support of the ESO staff at Paranal in \nscheduling and executing such a challenging observation, in particular \nChristophe Martayan and Maja Vuckovic.",
  "circularId": 12418,
  "createdOn": 1317895261000,
  "email": "malesani@dark-cosmology.dk",
  "subject": "GRB 111005A: VLT optical observations",
  "submitter": "Daniele Malesani at Dark Cosmology Centre, Niels Bohr Inst  <malesani@dark-cosmology.dk>",
  "eventId": "GRB 111005A"
}