{
  "bibcode": "2006GCN..5172....1B",
  "body": "P. J. Brown (Penn State), S. Campana (INAF-OAB),\nP. T. Boyd (NASA/GSFC), & F. E. Marshall (NASA/GSFC),\nreport on behalf of the Swift UVOT team:\n\nThe afterglow of GRB060526 (BAT Trigger 211957)\nreported in Campana et al. (GCN 5162) is also\ndetected by UVOT in the B filter, as well as the\npreviously reported V and White filters,\nand continues to fade.  We report the following\nadditional UVOT detections:\n\nFilter\tTstart-Tstop(s)\tExp(s)\tMag\tErr\nWhite\t6335-6534\t200\t19.2\t0.2\nV\t5311-5511\t200\t18.2\t0.2\nV\t6744-6944\t200\t18.6\t0.2\nB\t665-675  \t10\t18.2\t0.4\nB\t6130-6330 \t200\t19.4\t0.2\n\nThe afterglow is not detected in any filters\nblueward of B, consistent with the z=3.21 redshift\nmeasured by Berger & Gladders (GCN 5170).\nThe 3 sigma upper limits in summed images are:\n\nFilter\tTstart-Tstop(s)\tExp(s)\tUpperLimit(3sigma)\nU\t641-1492\t58\t>19.1\nW1\t617-1468\t58\t>19.1\nM2\t593-1444\t58\t>19.0\nW2\t693-1554\t78\t>19.6\n\nIn addition, examination of the event mode data of\nthe first V band observation, spanning 188 to 588\nseconds after the trigger, shows an optical flare\ncoincident with the flare seen by BAT and XRT\n(Campana et al. GCN 5163).",
  "circularId": 5172,
  "createdOn": 1148704095000,
  "email": "pbrown@astro.psu.edu",
  "subject": "GRB060526: Further Swift-UVOT Observations",
  "submitter": "Peter Brown at PSU  <pbrown@astro.psu.edu>",
  "eventId": "GRB 060526"
}