Lyman alpha Absorption Systems and the Intergalactic Medium
天体物理学
2009-10-31 v2
摘要
The last few years have seen a dramatic improvement in our understanding of the origin of Lyman alpha absorption systems. Hydrodynamic numerical simulations of cold dark matter dominated universes have shown that the many properties of the Lyman alpha absorption systems can be explained by a photoionized, space-filling, intergalactic medium. Lyman alpha lines offer promising probes of the photoionizing background, the amplitude of the mass fluctuations at high redshift and the evolution of the equation of state of the intergalactic medium.
引用
@article{arxiv.astro-ph/0003400,
title = {Lyman alpha Absorption Systems and the Intergalactic Medium},
author = {George Efstathiou and Joop Schaye and Tom Theuns},
journal= {arXiv preprint arXiv:astro-ph/0003400},
year = {2009}
}
备注
14 pages, 10 figures (2 gif). To appear in the Philosophical Transactions of The Royal Society, Series A. Corrected a verbal sign error