Reheating of the intergalactic medium at Z greater than 10

Details Reheating of the intergalactic medium at Z greater than 10 Reheating of the intergalactic medium at Z greater than 10

May 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mnras.214..137c&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 214, May 1, 1985, p. 137-159.

Statistics

Computation

32

Computational Astrophysics, Gas Ionization, Intergalactic Media, Photoionization, Plasma Heating, Baryons, Gas Density, Hydrogen, Molecular Gases, Red Shift

Scientific paper

The reheating and reionization of the intergalactic medium by photoionizing radiation is considered. It is shown that in a low gas density universe a modest input, even at z ≅ 100, can reionize the gas. The temperature of the intergalactic medium can be significantly affected even if the gas subsequently recombines. Over the range of redshifts considered, 0 ≤ z ≤ 100, the difference is small for gas recombining at z ≡ 100, becoming much larger for small redshifts. The molecular hydrogen abundance after recombination is also calculated. Results are presented for an Ω = 1 universe with Ωg = 0.05, nHe/nH = 1/12 and h0 = 1/2.

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