{
  "bibcode": "2009GCN..9093....1M",
  "body": "D. Malesani, J.P.U. Fynbo (DARK/NBI), P. Jakobsson (Univ. Iceland), A.J. \nLevan (Univ. Warwick), T. Liimets (Tartu Obs. and NOT), and Z. Banhidi \n(NOT), report on behalf of a larger collaboration:\n\nWe observed the field of GRB 090404 (Ziaeepour et al., GCN 9086) with \nthe NOT equipped with StanCam. Observations were carried out in the R \nand I bands, starting on 2009 Apr 5.035 UT (8.89 hr after the GRB). A \ntotal of 20 min exposure per filter were secured.\n\nWe do not detect any object inside the revised XRT error circle \n(Beardmore et al., GCN 9088), down to limiting magnitudes R > 23.5, I > \n22.3, assuming R = 19.19 and I = 18.84 for the USNO-B1 star 1255-0233978 \nat RA = 15:57:00.24, Dec = +35:31:28.0.\n\nWe note the presence of a faint object (R = 22.8), possibly extended, \njust outside the XRT circle, at coordinates (J2000):\n\nRA = 15:56:57.72\nDec = +35:30:58.2\n\nThis position is 2.4\" away from the XRT error circle center, which has \ncurrently an error radius of 1.4\" (from \nhttp://www.swift.ac.uk/xrt_positions/index.php). We cannot state whether \nthis object is related to GRB 090404. Further observations are ongoing.\n\n[GCN OPS NOTE(06may09): Per author's request, the institutional\naffiliation of Banhidi was changed to NOT.]",
  "circularId": 9093,
  "createdOn": 1238901670000,
  "email": "malesani@astro.ku.dk",
  "subject": "GRB 090404: NOT observations",
  "submitter": "Daniele Malesani at Dark Cosmology Centre, Niels Bohr Inst  <malesani@astro.ku.dk>",
  "eventId": "GRB 090404"
}