Ramirez-Ruiz 2009 短暴可能不需要那么老

主要内容:
主要根据高红移的短暴 GRB 070714B (z=0.923) 来推测短暴可能不是来自双中子星的并合(时间上太晚了)或者恒星演化不是我们推测的那么慢.

精彩摘抄:
短暴起源的目前的标准模型:

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Title:		Gamma-ray bursts: Maybe not so old after all
Authors:		Ramirez-Ruiz, Enrico; Lee, William
Affiliation:		AA(Enrico Ramirez-Ruiz is in the Department of Astronomy and Astrophysics, University of California, Santa Cruz, California 95064, USA. enrico@ucolick.org), AB(William Lee is at the Instituto de Astronomía, Universidad Nacional Autónoma de México, Mexico DF 04510, Mexico. wlee@astroscu.unam.mx)
Publication:		Nature, Volume 460, Issue 7259, pp. 1091-1092 (2009). (Nature Homepage)
Publication Date:		08/2009
Origin:		NATURE
Abstract Copyright:		(c) 2009: Nature
DOI:		10.1038/4601091a
Bibliographic Code:		2009Natur.460.1091R

Abstract

The discovery of a short-lived γ-ray burst at a surprisingly early epoch in the history of the Universe shows how much is still unknown about the evolution of the parent systems of such bursts.

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