The damping wing of the Gunn-Peterson absorption and Lyα emitters in the pre-reionization era

被引：26

作者：

Gnedin, NY ^{[1
]}

Prada, F ^{[1
]}

机构：

[1] Univ Colorado, Ctr Astrophys & Space Astron, Boulder, CO 80309 USA

来源：

ASTROPHYSICAL JOURNAL | 2004年 / 608卷 / 02期

基金：

美国国家科学基金会;

关键词：

cosmology; theory; galaxies; formation; intergalactic medium; large-scale structure of universe;

D O I：

10.1086/422390

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We use a numerical simulation of cosmological reionization to estimate the likelihood of detecting Lyalpha-emitting galaxies during the pre-reionization era. We show that it is possible to find galaxies even at z similar to 9 that are barely affected by the damping wing of the Gunn-Peterson absorption from the neutral intergalactic medium outside of their H it regions. The damping wing becomes rapidly more significant at z > 9, but even at z > 10 is it not inconceivable (although quite hard) to see a Lyalpha emission line from a star-forming galaxy.

引用

页码：L77 / L80

页数：4

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