Recombination of Hydrogen in the Hot Model of the Universe

Details Recombination of Hydrogen in the Hot Model of the Universe Recombination of Hydrogen in the Hot Model of the Universe

Jul 1968

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1968zhetf..55..278z&link_type=abstract

Zhurnal Eksperimental'noi i Teoreticheskoi Fiziki, V.55, N.1, P. 278-286, 1968 (Soviet Physics - JETP, V.28, P.146, 1969 - Trans

Physics

123

Cosmology, Cosmic Microwave Background Radiation, Intergalactic Gas

Scientific paper

The considerable emission of ultraviolet photons during recombination of hydrogen in an expanding universe lead to a slowing down of the recombination and to distortion of the relic radiation spectrum in the Wien region due to 2s level decay. The energy exchange between electrons and radiation due to Compton effect maintains the temperature of matter egual to that of radiation up to the time corresponding to a red shift of z~150, and this leads, in particular, to a change in the time dependence of the Jeans wavelength of the gravitational instability of a homogeneous medium in an expanding universe.

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