Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987rpsct....q..30d&link_type=abstract
In its JPRS Report: Science and Technology. USSR: Space p 30 (SEE N87-29547 24-12) Transl. into ENGLISH from Astronomicheskiy Zh
Astronomy and Astrophysics
Astrophysics
Anisotropy, Astrophysics, Electromagnetic Radiation, Hydrogen Recombinations, Ionization, Plasmas (Physics), Relic Radiation, Cosmology, Hydrogen, Kinetics, Optical Thickness
Scientific paper
Experimental data on the small-scale angular anisotropy of relic electromagnetic radiation are an important source of information on the early universe. This approach was used in a study of the generation of small-scale anisotropy using models with secondary ionization of pregalactic matter. In the modeling it was postulated that the source of excess radiation is high-energy quanta arising during the decay of unstable massive particles or primordial black holes. The kinetics of ionization and hydrogen recombination were studied and the principle variants of change in plasma optical thickness were computed. It is demonstrated that nonequilibrium ionization of pregalactic plasma is an effective mechanism of attenuation of small-scale anisotropy of relic radiation.
Dorosheva Ye. I.
Naselskiy P. D.
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