Diagnosing the reionization of the universe - The absorption spectrum of the intergalactic medium and Lyman alpha clouds

Details Diagnosing the reionization of the universe - The absorption spectrum of the intergalactic medium and Lyman alpha clouds Diagnosing the reionization of the universe - The absorption spectrum of the intergalactic medium and Lyman alpha clouds

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991aipc..222..352g&link_type=abstract

In: After the first three minutes; Proceedings of the 1st Astrophysics Workshop, Univ. of Maryland, College Park, Oct. 15-17, 19

Astronomy and Astrophysics

Astrophysics

2

Absorption Spectra, Intergalactic Media, Lyman Alpha Radiation, Universe, Helium, Interstellar Gas, Ionization, Quasars, Red Shift

Scientific paper

The thermal and ionization evolution of a uniform intergalactic medium composed of H and He and undergoing reionization is studied. The diagnosis of the metagalactic ionizing radiation background at z of about three using metal line ratios for Lyman limit quasar absorption line systems is addressed. The use of the He II Gunn-Peterson effect to diagnose the reionization source and/or nature of the Hy-alpha forest clouds is considered.

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