GRB 060121: Implications of a Short/Intermediate Duration Gamma-Ray Burst at High Redshift

Simple item page
dc.creatorPostigo, A. de Ugarte
dc.creatorCastro-Tirado, A. J.
dc.creatorGuziy, S.
dc.creatorGorosabel, J.
dc.creatorJohannesson, G.
dc.creatorAloy, M. A.
dc.creatorMcBreen, S.
dc.creatorLamb, D. Q.
dc.creatorBenitez, N.
dc.creatorJelinek, M.
dc.creatorPandey, S. B.
dc.creatorCoe, D.
dc.creatorPerez-Ramirez, M. D.
dc.creatorAceituno, F. J.
dc.creatorAlises, M.
dc.creatorAcosta-Pulido, J. A.
dc.creatorGomez, G.
dc.creatorLopez, R.
dc.creatorDonaghy, T. Q.
dc.creatorNakagawa, Y. E.
dc.creatorSakamoto, T.
dc.creatorRicker, G. R.
dc.creatorHearty, F. R.
dc.creatorBayliss, M.
dc.creatorGyuk, G.
dc.creatorYork, D. G.
dc.date2006-05-19
dc.date.accessioned2026-07-07T11:57:23Z
dc.date.available2026-07-07T11:57:23Z
dc.descriptionSince the discovery of the first short-hard gamma-ray burst afterglows in 2005, the handful of observed events have been found to be embedded in nearby (z < 1), bright underlying galaxies. We present multiwavelength observations of the short-duration burst GRB 060121, which is the first observed to clearly outshine its host galaxy (by a factor >10^2). A photometric redshift for this event places the progenitor at a most probable redshift of z = 4.6, with a less probable scenario of z = 1.7. In either case, GRB 060121 could be the farthermost short-duration GRB detected to date and implies an isotropic-equivalent energy release in gamma-rays comparable to that seen in long-duration bursts. We discuss the implications of the released energy on the nature of the progenitor. These results suggest that GRB 060121 may belong to a family of energetic short-duration events, lying at z > 1 and whose optical afterglows would outshine their host galaxies, unlike the first short-duration GRBs observed in 2005. The possibility of GRB 060121 being an intermediate duration burst is also discussed.
dc.description4 pages, 4 figures. Submitted to ApJL
dc.identifierhttps://arxiv.org/abs/astro-ph/0605516
dc.identifierhttp://arxiv.org/abs/astro-ph/0605516
dc.identifierAstrophys.J.648:L83-L88,2006
dc.identifierdoi:10.1086/507868
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205866
dc.subjectAstrophysics
dc.titleGRB 060121: Implications of a Short/Intermediate Duration Gamma-Ray Burst at High Redshift
dc.typetext

Files

Collections

arXiv