{
  "bibcode": "2009GCN..9197....1G",
  "body": "C. Guidorzi (U. Ferrara), D. Bersier, C.G. Mundell (Liverpool JMU)\non behalf of a large collaboration report:\n\nFollowing the distribution of the enhanced Swift-XRT position\n(Beardmore et al. GCN Circ. 9194) of GRB 090422 (Ukwatta et al.\nGCN Circ. 9185), we re-analysed the data acquired with the\nLiverpool Telescope, mentioned in our previous report\n(Guidorzi et al. GCN Circ. 9187).\n\nInside the enhanced XRT error circle we detect a single object\nwith magnitude of (21.7 +/- 0.3) in the r' filter, from 11 to 43\nmin post burst, at the following position (J2000):\n\nRA=   19:38:59.91\nDecl= +40:23:03.5\n\nwith an uncertainty of 0.7 arcsec. The calibration was done with\nrespect to nearby USNOB-1 stars, using the R2 magnitudes values.\nThis source is also detected in i' and z' filters.\nAt the moment we cannot assess whether the object is fading.\nThe source of r'~19 mag mentioned in our earlier report lies\noutside the enhanced XRT error circle.\nFurther observations are planned.",
  "circularId": 9197,
  "createdOn": 1240445569000,
  "email": "guidorzi@fe.infn.it",
  "subject": "GRB 090422: Liverpool Telescope possible candidate",
  "submitter": "Cristiano Guidorzi at Ferrara U,Italy  <guidorzi@fe.infn.it>",
  "eventId": "GRB 090422"
}