Lyutikov 2009 伽马暴小综述

主要内容:
更多的是很多疑问。

提出两个模型：X射线余辉可能是外流体本身的耗散辐射，而不是外籍波；暴本身在共动系里可能就是集束的。

精彩摘抄:


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Title:		Gamma Ray Bursts: back to the blackboard
Authors:		Lyutikov, Maxim
Publication:		eprint arXiv:0911.0349
Publication Date:		11/2009
Origin:		ARXIV
Keywords:		Astrophysics - High Energy Astrophysical Phenomena
Comment:		28 pages, proceedings of the The Shocking Universe meeting, Venice, September 2009
Bibliographic Code:		2009arXiv0911.0349L

Abstract

Exceptional observational breakthroughs in the field of Gamma Ray Burst research are not paralleled by theoretical advances. In this review, based on the introductory talk given at the "The Shocking Universe" meeting, I argue that any present day model of GRBs, especially of Short type, is grossly incomplete. I will highlight various contradictions with observations that many models face and briefly mention a number of ideas that might or might not work. In particular, I will discuss (i) a possibility that early X-ray afterglows are coming from internal dissipation, and not from the forwards shock; (ii) that prompt radiation is beamed in the outflow frame.

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