{
  "bibcode": "2002GCN..1458....1P",
  "body": "P.A. Price (RSAA, ANU), S.R. Kulkarni, D.W. Fox and J.S. Bloom\n(Caltech) report on behalf of the larger Caltech-NRAO-CARA GRB\ncollaboration:\n\nWe observed the afterglow of GRB 020405 (GCN #1326) with HST+WFPC2 at\nseveral epochs spanning 19-31 days after the GRB in F555W, F702W and\nF814W, with additional observations approximately two months after the\nGRB to remove host contamination.  These observations formed part of\nour large Cycle 10 program to search for SNe underlying low redshift\nGRBs.\n\nWe have performed Novicki-Tonry photometry (see astro-ph/0207187) on\nboth ground-based and HST imaging.  The resultant light curve,\nincluding data from Bersier et al. (astro-ph/0206465), is at\nhttp://www.mso.anu.edu.au/~pap/grb020405/ .\n\nAn excess of flux is evident in the HST images, compared to an\nextrapolation of the light-curve from early times.  Based on the red\ncolour and the time of peak emission, we identify this excess as a SN\nassociated with GRB 020405.  We have plotted the light-curve of SN\n1998bw at z=0.695 (Masetti et al., GCN #1330) and dimmed by 0.5 mag as\na comparison.  This SN appears to be red relative to SN 1998bw, but\nthis is sensitive to the amount of flux in the afterglow at the final\navailable HST images.  Further HST observations to measure the host\ngalaxy and remove this ambiguity are planned for August.\n\nThis message may be cited.",
  "circularId": 1458,
  "createdOn": 1027408510000,
  "email": "pap@mso.anu.edu.au",
  "subject": "GRB 020405: HST observations reveal red bump",
  "submitter": "Paul Price at RSAA, ANU  <pap@mso.anu.edu.au>",
  "eventId": "GRB 020405"
}