{
  "bibcode": "2014GCN.16278....1D",
  "body": "A. de Ugarte Postigo (IAA-CSIC, DARK/NBI), J. Gorosabel\n\n(IAA-CSIC, UPV-EHU), D. Xu (DARK/NBI), J.P.U. Fynbo\n\n(DARK/NBI), P. Jakobsson (U. Iceland), D. Malesani\n\n(DARK/NBI), N.R. Tanvir (U. Leicester), E. Gafton\n\n(OKC, Stockholm Univ.) and T. Libbrecht (Stockholm Univ.)\n\nreport on behalf of a larger collaboration:\n\n\nWe have observed the afterglow of GRB 140515A (D'Avanzo et al.,\n\nGCN 16267) with the 2.5m NOT telescope. Observations consisted\n\nof 5x300s imaging in the z-band and have an average epoch of\n\n12.10 hr after the burst. The images reveal the optical afterglow\n\ndetected by Chornock et al. (GCN 16269) and Fong et al. (GCN\n\n16274) at a magnitude of z(AB) = 22.15+/-0.15, as compared with\n\nSDSS stars. This indicates a decay with a slope of alpha ~ -0.9\n\n(where F_nu~t^alpha) as compared with the photometry of Fong\n\net al. (GCN 16274). Further observations are ongoing.",
  "circularId": 16278,
  "createdOn": 1400200212000,
  "email": "deugarte@iaa.es",
  "subject": "GRB 140515A: Optical observations from the 2.5 m NOT",
  "submitter": "Antonio de Ugarte Postigo at IAA-CSIC  <deugarte@iaa.es>",
  "eventId": "GRB 140515A"
}