Bloom 2008 用物理起源分类伽玛暴

主要内容:
强调用物理起源而不是表象的时标长短来分类伽玛暴。

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文章信息:

· arXiv e-print (arXiv:0804.0965)

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Title:		Gamma-ray Bursts, Classified Physically
Authors:		Bloom, Joshua S.; Butler, Nathaniel R.; Perley, Daniel A.
Publication:		eprint arXiv:0804.0965
Publication Date:		04/2008
Origin:		ARXIV
Keywords:		Astrophysics
Comment:		6 pages, 3 figures. Slightly expanded version of solicited paper to be published in the Proceedings of ''Gamma Ray Bursts 2007,'' Santa Fe, New Mexico, November 5-9. Edited by E. E. Fenimore, M. Galassi, D. Palmer
Bibliographic Code:		2008arXiv0804.0965B

Abstract

From Galactic binary sources, to extragalactic magnetized neutron stars, to long-duration GRBs without associated supernovae, the types of sources we now believe capable of producing bursts of gamma-rays continues to grow apace. With this emergent diversity comes the recognition that the traditional (and newly formulated) high-energy observables used for identifying sub-classes does not provide an adequate one-to-one mapping to progenitors. The popular classification of some > 100 sec duration GRBs as ``short bursts'' is not only an unpalatable retronym and syntactically oxymoronic but highlights the difficultly of using what was once a purely phenomenological classification to encode our understanding of the physics that gives rise to the events. Here we propose a physically based classification scheme designed to coexist with the phenomenological system already in place and argue for its utility and necessity.

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