{
  "bibcode": "2012GCN.13987....1G",
  "body": "S. Guziy (Mykolaiv Nat. Univ.), R. Sanchez-Ramirez (IAA-CSIC), L.\nMonteagudo Narvion (IAC), O. Lara, M. Jelinek (IAA-CSIC), P. Kubanek (IP\nAS CR), Y. Fan, X. Zhao, J. Bai, C. Wang, Y. Xin (Yunnan National\nAstronomical Observatory), Chenzhou Cui (Beijing National Astronomical\nObservatory), R. Cunniffe, A.J. Castro-Tirado, J.C. Tello and J. Gorosabel\n(IAA-CSIC), on behalf of a larger collaboration, report:\n\nWe have observed the GRB 121123A optical afterglow (GCN 13982, Helder et\nal.) with the 0.6m BOOTES-4/MET robotic telescope at the Lijiang\nAstronomical Observatory (China) and with the 0.82m IAC80 telescope\n(Tenerife, Spain). The afterglow is detected as follows:\n\n   Tel.  Date Nov  To-Tgrb Texp  Filter  Mag(Vega)\n         UT-start   (hr)    (s)\n --------------------------------------------------------\n  BOOTES-4 23.5196  2.43  5x120    r   18.87 +/- 0.15\n  BOOTES-4 23.5711  3.66  5x120    r   19.01 +/- 0.15\n  IAC80    23.7853  8.80  4x300    I   18.90 +/- 0.12\n\nOur measurements confirm the shallow decay reported by Xu et al. (GCN 13986).",
  "circularId": 13987,
  "createdOn": 1353710422000,
  "email": "jgu@iaa.es",
  "subject": "GRB 121123A: BOOTES-4 and IAC80 optical observations",
  "submitter": "Javier Gorosabel at IAA-CSIC  <jgu@iaa.es>",
  "eventId": "GRB 121123A"
}