Small-scale microwave-background anisotropies in a universe dominated by nonrelativistic particles

Journal Article · Tue Oct 01 04:00:00 EDT 1985 · Sov. Astron. Lett. (Engl. Transl.); (United States)

OSTI ID:5322117

Doroshkevich, A G

Instantaneous hydrogen recombination is the premise of the present predictions of the small scale anisotropies in background cosmic radiation temperature, for the case of an early universe model that is dominated by heavy neutrinos. On the basis of the relationship established between the temperature fluctuation parameters and the correlation radius r(0) of the galaxy distribution, an r(0) value of 4.5/(100 km/sec Mpc)/H(0)/Mpc implies a fluctuation amplitude below 0.00001; the minimum fluctuation amplitude value will depend on the amplitude of the primordial density fluctuations, the current horizon distance, and the Jeans scale at the recombination epoch. 18 references.

• Research Organization: Institut Prikladnoi Matematiki, Moscow, USSR
• OSTI ID: 5322117
• Journal Information: Sov. Astron. Lett. (Engl. Transl.); (United States), Journal Name: Sov. Astron. Lett. (Engl. Transl.); (United States) Vol. 11; ISSN SALED
• Country of Publication: United States
• Language: English

Related Subjects

640106* -- Astrophysics & Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANISOTROPY
BACKGROUND RADIATION
COSMOLOGICAL MODELS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
FUNCTIONS
LEPTONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MICROWAVE RADIATION
NEUTRINOS
PERTURBATION THEORY
RADIATIONS
RELICT RADIATION
TRANSFER FUNCTIONS
UNIVERSE