Outskirts of Distant Galaxies in Absorption
Outskirts of Distant Galaxies in Absorption
复制标题
正在吸收的遥远星系的外围
DOI：
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Hsiao
中科院分区：
文献类型：
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作者：
Hsiao
QSO吸收光谱为遥远宇宙中的中性介质和漫射电离气体提供了灵敏的探针。它将低红移星系周围21厘米的气体结构图扩展到低气柱密度和高红移。结合星系巡天和星系周围气体的吸收线观测，可以在宇宙时间内对星系外围的重子周期进行全面的研究。本章综述了从阻尼Lyα吸收体（DLAs）研究中对宇宙中性气体储层的经验认识。描述了DLA研究对遥远星系外围恒星形成关系和化学富集历史的限制。最后简要讨论了从低柱密度Lyα吸收剂和相关离子吸收跃迁的研究中对电离环星系气体的可用约束。
QSO absorption spectroscopy provides a sensitive probe of both the neutral medium and diffuse ionized gas in the distant Universe. It extends 21 cm maps of gaseous structures around low-redshift galaxies both to lower gas column densities and to higher redshifts. Combining galaxy surveys with absorption-line observations of gas around galaxies enables comprehensive studies of baryon cycles in galaxy outskirts over cosmic time. This chapter presents a review of the empirical understanding of the cosmic neutral gas reservoir from studies of damped Lyα absorbers (DLAs). It describes the constraints on the star formation relation and chemical enrichment history in the outskirts of distant galaxies from DLA studies. A brief discussion of available constraints on the ionized circumgalactic gas from studies of lower column density Lyα absorbers and associated ionic absorption transitions is presented at the end.
DOI：
10.1088/0004-637x/768/1/74
发表时间：
2012-11
期刊：
The Astrophysical Journal
影响因子：
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作者：
L. Tacconi;R. Neri;R. Genzel;F. Combes;A. Bolatto;M. Cooper;S. Wuyts;F. Bournaud;A. Burkert-
通讯作者：
L. Tacconi;R. Neri;R. Genzel;F. Combes;A. Bolatto;M. Cooper;S. Wuyts;F. Bournaud;A. Burkert-
DOI：
10.1088/0004-6256/140/5/1194
发表时间：
2010-07
期刊：
The Astronomical Journal
影响因子：
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作者：
F. Bigiel;A. Leroy;F. Walter;L. Blitz;E. Brinks;W. D. Blok;B. M. U. Berkeley;Mpia Heidelberg;Nrao;U. Hertfordshire;U. C. Town;C. Observatories
通讯作者：
F. Bigiel;A. Leroy;F. Walter;L. Blitz;E. Brinks;W. D. Blok;B. M. U. Berkeley;Mpia Heidelberg;Nrao;U. Hertfordshire;U. C. Town;C. Observatories