Early Stage of Galaxy Formation

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We discuss on the early stage of galaxy formation based on recent deep surveys for very high-redshift galaxies, mostly beyond redshift of 6. These galaxies are observed to be strong Lyman$α$ emitters, indicating bursts of massive star formation in them. The fraction of such star-forming system appears to increase with increasing redshift. On the other hand, the star formation rate density derived from Lyman$α$ emitters tends to decrease with increasing redshift. It is thus suggested that the major epoch of initial starbursts may occur around $z \sim$ 6 -- 7. In order to understand the early stage of galaxy formation, new surveys for galaxies beyond redshift of 7 will be important in near future.
4 pages with 1 table, Invited Review Talk presented at IAU The 9th Asian Pacific Regional Meeting

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Astrophysics

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http://salesiana.dossiersoluciones.com/handle/123456789/102618

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/astro-ph/0510601
 http://arxiv.org/abs/astro-ph/0510601

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arXiv