{
  "subject": "GRB 080625: Swift/UVOT Follow-Up Observations",
  "eventId": "GRB 080625",
  "bibcode": "2008GCN..7908....1I",
  "createdOn": 1214594240000,
  "circularId": 7908,
  "submitter": "Stefan Immler at NASA/GSFC  <stefan.m.immler@nasa.gov>",
  "email": "stefan.m.immler@nasa.gov",
  "body": "S. Immler (NASA/CRESST/GSFC) reports on behalf of the Swift/UVOT team:\n\nSwift Ultra-Violet/Optical Telescope (UVOT) follow-up observations\nof GRB 080625 (Pacciani et al., GCN Circ. 7903), starting ~25.9 hrs\nafter the AGILE trigger, confirm the fading of the optical afterglow\n(Immler et al., GCN Circ. 7905; de Ugarte Postigo et al., GCN Circ. 7907).\n\nThe following magnitude is measured in the co-added image obtained\nin the White filter:\n\nFilter   T_start [s]   T_stop [s]   Exp [s]   Magnitude\n\nWhite    93,092        162,754      5,776      21.3 +/- 0.1\n\nThe magnitude quoted above is in the UVOT photometric system\n(Poole et al. 2008, MNRAS, 383, 627). No correction has been\nmade for the expected extinction corresponding to E(B-V) of\n0.14 mag in the direction of the burst (Schlegel et al. 1998).\nNote the corrected value for the extinction compared to Immler\n2008 (GCN Circ. 7905)."
}