{
  "version": 2,
  "circularId": 2602,
  "submitter": "David Bersier at STScI  <bersier@stsci.edu>",
  "editedBy": "Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of Leo P. Singer at NASA/GSFC <leo.p.singer@nasa.gov>",
  "subject": "GRB 040511, very fast decay?",
  "body": "D. Bersier, J. M. Castro Cerón, J. Rhoads, A. Fruchter (STScI), A. Levan\n(U. of Leicester), J. Gorosabel (IAA-CSIC), C. Kouveliotou (NASA/MSFC,\nNSSTC), S. Patel (USRA, NSSTC), M. Merrill (NOAO), J. Bally, J.\nWalawender, (U. Colorado), and B. Reipurth (Hawaii) report on behalf of\na larger collaboration:\n\nWe have observed the field of GRB 040511 (GCN Dullighan et al. 2004, GCN\n2588) with the CTIO 4m telescope on the nights of May 11 and May 12.\nOur R-band photometry of the candidate afterglow (Fox et al. 2004, GCN\n2597) shows that this source decayed by 2.5 mag between 0.79d and 1.60d\nafter the burst.  Assuming that the decay follows a power law, we derive\nan index of -3.2. If the variable source is indeed the afterglow of GRB\n040511, this would be among the fastest decay indices ever observed.",
  "createdOn": 1085090866000,
  "bibcode": "2004GCN..2602....1B",
  "email": "bersier@stsci.edu",
  "editedOn": 1731924319527,
  "eventId": "GRB 040511",
  "format": "text/plain"
}