{
  "bibcode": "2010GCN.10854....1M",
  "body": "D. Malesani (DARK/NBI), D. Xu (Weizmann Inst.), T. Pursimo (NOT), P. \nJakobsson (Univ. Iceland), report on behalf of a larger collaboration:\n\nWe observed the field of GRB 100614A (Stratta et al., GCN 10837) with \nthe NOT equipped with ALFOSC. Observations were carried out in the R, I, \nand z filters, with mean times 54, 79, and 107 minutes after the GRB \ntrigger, respectively.\n\nWe do not detect any source within the refined XRT error circle (Osborne \net al., GCN 10849) in any of our images. The limiting magnitudes are R > \n24.0, I > 22.8 calibrated against the USNO-B1 catalog (calibration of \nthe z-band data is not presently feasible). Our findings are in \nagreement with non-detections reported by other groups (Mundell & \nSteele, GCN 10838; Jelinek et al., GCN 10839; Levan et al., GCN 10840; \nGorbovskoy et al., GCN 10853).\n\nWe acknowledge prompt reaction and careful assistence of the NOT staff.",
  "circularId": 10854,
  "createdOn": 1276619686000,
  "email": "malesani@dark-cosmology.dk",
  "subject": "GRB 100614A: NOT optical upper limits",
  "submitter": "Daniele Malesani at Dark Cosmology Centre, Niels Bohr Inst  <malesani@dark-cosmology.dk>",
  "eventId": "GRB 100614A"
}