{
  "bibcode": "2011GCN.11819....1T",
  "body": "N. R. Tanvir (U. Leicester) and A. J. Levan (U. Warwick) report:\n\nWe have re-reduced and re-analysed more thoroughly the imaging reported\nin GCN 11642. While it remains the case that the optical transient is\ndetected in the H-alpha narrow-band filter, and at best marginally present\nin the r-band, the significance of the excess H-alpha detection is reduced.��\nWithin the associated errors the revised photometry is broadly consistent\nwith the red colour of the transient at this time (the narrow-band filter being\nsomewhat redward of the central wavelength of the r-band filter), and hence,\nthe data do not require significant line emission. This argument for a z~0\norigin is therefore weakened.",
  "circularId": 11819,
  "createdOn": 1300821383000,
  "email": "nrt3@star.le.ac.uk",
  "subject": "GRB 101225A: revised analysis of narrow band imaging",
  "submitter": "Nial Tanvir at U.Leicester  <nrt3@star.le.ac.uk>",
  "eventId": "GRB 101225A"
}