Levan 2007 短暴GRB 050906的观测

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文章信息:
arXiv:0705.1705 [ps, pdf, other] : Title: On the nature of the short duration GRB 050906
Authors: A.J. Levan, N.R. Tanvir, P. Jakobsson, R. Chapman, J. Hjorth, R.S. Priddey, J.P.U. Fynbo, K. Hurley, B.L. Jensen, R. Johnson, J. Gorosabel, A.J. Castro-Tirado, M. Jarvis, D. Watson, K. Wiersema
Comments: 8 pages, 5 figures, accepted for publication in MNRAS

We present deep optical and infrared observations of the short duration GRB 050906. Although no X-ray or optical/IR afterglow was discovered to deep limits, the error circle of the GRB (as derived from the Swift BAT) is unusual incontaining the relatively local starburst galaxy IC328. This makes GRB 050906 a candidate burst from a soft-gamma repeater, similar to the giant flare from SGR 1806-20. The probability of chance alignment of a given BAT position with such a galaxy is small (<1%), z="0.43,">