{
  "bibcode": "2006GCN..5261....1M",
  "body": "D. Malesani (SISSA), S. Covino, S. Campana, D. Fugazza, G. Tagliaferri \n(INAF/OABr), G. Chincarini (Univ. Milano-Bicocca), and L. Stella \n(INAF/OAR), report on behalf of the MISTICI collaboration:\n\nWe have observed the afterglow of GRB 060614 (Parsons et al., GCN 5252) \nwith the ESO VLT-UT1 equipped with the FORS2 instrument.\n\nThe optical afterglow is well detected in the R filter, and shows a \ndimming by 0.45+-0.03 mag between 14.4 and 21.6 hr after the GRB. \nAssuming a power-law decay, this corresponds to a decay slope alpha ~ 1, \nconsistent with what found by French et al. (GCN 5257). Compared with \nseveral nearby USNO-B1 stars (R1 magnitudes), the afterglow has R~19.3 \non Jun 14.12892, with a calibration uncertainty of ~0.2 mag.\n\nWe note an overall similarity between the early optical light curves of \nGRB 060614 and GRB 060218 (Campana et al., astro-ph/0603279), both \npresenting a maximum ~0.5 d after the burst. GRB 060614 is however \npeaking earlier. We encourage further follow-up of this interesting event.\n\nWe acknowledge excellent support from the ESO staff at Paranal, in \nparticular Rachel Gilmour and Leonardo Vanzi.",
  "circularId": 5261,
  "createdOn": 1150388579000,
  "email": "malesani@sissa.it",
  "subject": "GRB 060614: optical observations",
  "submitter": "Daniele Malesani at SISSA-ISAS,Trieste,Italy  <malesani@sissa.it>",
  "eventId": "GRB 060614"
}