High Redshift Galaxies and the Sources of Reionization

Details High Redshift Galaxies and the Sources of Reionization High Redshift Galaxies and the Sources of Reionization

Mar 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004msngr.115...27l&link_type=abstract

The Messenger (ISSN0722-6691), No.115, p. 27-31 (March 2004)

Astronomy and Astrophysics

Astrophysics

1

Scientific paper

Two of the most important issues in modern astrophysics, what reionized the hydrogen in the Universe and how the first objects formed have been addressed by a series of VLT observations. They indicate that the hydrogen was reionized by ultra violet photons from stars and not Active Galactic Nuclei, with most of the photons arising in relatively faint low mass galaxies.

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