posted on 2006-11-03, 13:49authored byC.P. Hurkett, Julian P. Osborne, Kim L. Page, Evert Rol, Michael R. Goad, Paul T. O'Brien, Andrew P. Beardmore, Olivier Godet, David N. Burrows, Nial R. Tanvir, Andrew J. Levan, B. Zhang, D. Malesani, Joanne E. Hill, Jamie A. Kennea, Robert Chapman, V. La Parola, M. Perri, Patrizia Romano, R. Smith, Neil Gehrels
We report the discovery and subsequent multiwavelength afterglow behaviour of the high-redshift (z= 4.27) Gamma Ray Burst (GRB) 050505. This burst is the third most-distant burst, measured by spectroscopic redshift, discovered after GRB 000131 (z= 4.50) and GRB 050904 (z= 6.29). GRB 050505 is a long GRB with a multipeaked γ-ray light curve, with a duration of T90= 63 ± 2 s and an inferred isotropic release in γ-rays of ~4.44 × 10(53) erg in the 1–10(4) keV rest-frame energy range. [Abstract truncated]
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Citation
Monthly Notices of the Royal Astronomical Society, 2006, 368(3), pp. 1101-1109.