Variation in the Opacity of the Intergalactic Medium During its Reionization

Details Variation in the Opacity of the Intergalactic Medium During its Reionization Variation in the Opacity of the Intergalactic Medium During its Reionization

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002ap.....45..176g&link_type=abstract

Astrophysics (English translation of Astrofizika), v. 45, Issue 2, p. 176-183 (2002).

Astronomy and Astrophysics

Astrophysics

Galaxies - Intergalactic Medium

Scientific paper

It is now assumed that reionization of the intergalactic medium occurred under the action of ultraviolet radiation from hot stars contained in galaxies that formed early. Regions of ionized hydrogen (H II zones) were formed around such galaxies. The effects of hydrogen recombination and of the simultaneous cosmological expansion of such regions on their opacity are considered. It is shown that regions formed at z i L c radiation, while for z i 5 the intergalactic medium should be transparent at 0 z < 5. This conclusion is in accord with recent observational data.

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