The interaction of matter and radiation in the hot model of the Universe,II |
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Authors: | R A Sunyaev Ya B Zeldovich |
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Institution: | (1) Institute of Applied Mathematics, Academy of Sciences of the U.S.S.R., Moscow, USSR |
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Abstract: | Heating of the primaeval plasma prior to the epoch of recombination results in distortions in the Rayleigh-Jeans region of the microwave relic radiation spectrum (![lambda](/content/pu15r7879138lv03/xxlarge955.gif) 1–60 cm, or more exactly =2.5 –7/8 cm). The present observational data allow limits to be set to such energy injection from which follow upper limits to (a) the amount of antimatter in the universe; (b) the parameters of primaeval turbulence; and (c) the adiabatic fluctuation spectrum for small masses (M<1011
M
).If the heating takes place prior to the epocht=1010 12/5 sec (and in particular at the annihilation of electron-positron pairs atT 108–1010 K,t<300 sec), no observable distortions are expected in the relic radiation spectrum. Here = / crit is the dimensionless average density of matter in the universe.Translated from the Russian by D. F. Smith. |
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