{
  "bibcode": "2013GCN.15515....1S",
  "body": "C. A. Swenson (PSU) and A. Maselli (INAF-IASFPA)\nreport on behalf of the Swift/UVOT team:\n\nThe Swift/UVOT began settled observations of the field of GRB 131122A\n13578 s after the INTEGRAL trigger (Gotz et al., GCN Circ. 15510).\nNo optical counterpart consistent with the potential XRT afterglow position\n(Maselli et al., GCN Circ. 15513) is detected in the initial UVOT exposures.\n\nPreliminary 3-sigma upper limits using the UVOT photometric system\n(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the initial exposures are:\n\nFilter         T_start(s)   T_stop(s)      Exp(s)         Mag\n\nwhite            14302        20578          855         >21.3\nv                20830        21061          227         >19.0\nu                13578        20136         1375         >21.0\n\nThe magnitudes in the table are not corrected for the Galactic extinction\ndue to the reddening of E(B-V) = 0.01 in the direction of the burst\n(Schlegel et al. 1998).",
  "circularId": 15515,
  "createdOn": 1385222352000,
  "email": "cswenson@astro.psu.edu",
  "subject": "GRB 131122A: Swift/UVOT Upper Limits",
  "submitter": "Craig Swenson at PSU/Swift  <cswenson@astro.psu.edu>",
  "eventId": "GRB 131122A"
}