Lu 2008 Tidal disruption model for GRB 060614

主要内容:
The progenitor star of GRB 060614 may be tidally disrupted by an intermediate mass black hole.

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文章信息:

arXiv:0801.2419 [ps, pdf, other]

Title: A tidal disruption model for the gamma-ray burst of GRB 060614

Authors: Y. Lu, Y.F. Huang, S.N. Zhang

Comments: 13pages, submitted to ApJ

Subjects: Astrophysics (astro-ph)

The combination of a long duration and the absence of any accompanying supernova clearly shows that GRB 060614 can not be grouped into the two conventional classes of gamma-ray bursts, i.e. the long/soft bursts deemed to be collapsars and the short/hard bursts deemed to be merging binary compact stars. A new progenitor model is required for this anomalous gamma-ray burst. We propose that GRB 060614 might be produced through the tidal disruption of a star by an intermediate mass black hole. In this scenario, the long duration and the lack of any associated supernova are naturally expected. The theoretical energy output is also consistent with observations.