Gamma-ray bursts versus quasars:: Lyα signatures of reionization versus cosmological infall

被引：88

作者：

Barkana, R ^{[1
]}

Loeb, A

机构：

[1] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Phys & Astron, IL-69978 Tel Aviv, Israel

[2] Inst Adv Study, Princeton, NJ 08540 USA

来源：

ASTROPHYSICAL JOURNAL | 2004年 / 601卷 / 01期

关键词：

cosmology : theory; galaxies : formation; galaxies : high-redshift; quasars : absorption lines;

D O I：

10.1086/380435

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Lyalpha absorption is a prominent cosmological tool for probing both galactic halos and the intergalactic medium at high redshift. We consider a variety of sources that can be used as the Lyalpha emitters for this purpose. Among these sources, we argue that quasars are the best probes of the evolution of massive halos, while gamma-ray bursts represent the cleanest sources for studying the reionization of the intergalactic medium.

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页码：64 / 77

页数：14

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