{
  "bibcode": "2014GCN.16783....1X",
  "body": "D. Xu (DARK/NBI), S. Geier (ESO), D. Malesani, J. P. U. Fynbo\n(DARK/NBI), J. Harmanen (NOT), A. J. Levan (U. Warwick), P. Jakobsson\n(U. Iceland) report on behalf of a large collaboration:\n\nWe observed the field of the short GRB 140903A (Cummings et al., GCN\n16763) using the 2.5m Nordic Optical Telescope (NOT) equipped with\nStanCam and NOTCam. We observed for a total of 20 and 30 min in the R-\nand H- bands, respectively. The middle times of the observations are\n29.898 hr and 30.315 hr after the BAT trigger, respectively.\n\nThe previously reported object (Capone et al., GCN 16769; Cenko  et\nal., GCN 16770;  Fruchter, GCN 16776; Dichiara et al., GCN 16781) is\nclearly detected in our R- and H-band stacked images. We found\nR=20.1+/-0.5 mag calibrated with nearby SDSS stars and H=16.1+/-0.3\nmag calibrated with the nearby 2MASS stars.\n\nNote that a fuzzy source is present at the same position in the SDSS\nfield, especially in z-band. Together with the pre- and post-burst\nobservations, the optical brightness of the object either varies\nslowly or remains constant (see also Fruchter, GCN 16776), which\nimplies that what we're observing in optical is basically the host\ngalaxy of the burst.\n\n[GCN OPS NOTE(05sep14): Per author's request, the affilliation of SG\nwas changed to ESO.]",
  "circularId": 16783,
  "createdOn": 1409926310000,
  "email": "dong.dark@gmail.com",
  "subject": "GRB 140903A: NOT optical and NIR observations",
  "submitter": "Dong Xu at DARK/NBI  <dong.dark@gmail.com>",
  "eventId": "GRB 140903A"
}