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Title:
Cosmological impact of the neutrino rest mass
Authors:
DOROSHKEVICH, A. G.; KHLOPOV, M. IU.; SUNIAEV, R. A.; SZALAY, A. S.; ZELDOVICH, IA. B.
Affiliation:
AB(Akademiia Nauk SSSR, Institut Prikladnoi Matematiki, Moscow, USSR) AC(Akademiia Nauk SSSR, Institut Kosmicheskikh Issledovanii, Moscow, USSR) AD(Eotvos Lorand Tudomanyegyetem, Budapest, Hungary) AE(California, University, Berkeley, CA)
Journal:
(AAS, American Physical Society, NASA, et al., Texas Symposium on Relativistic Astrophysics, 10th, Baltimore, MD, Dec. 15-19, 1980.) New York Academy of Sciences, Annals, vol. 375, Dec. 29, 1981, p. 32-42.
Publication Date:
12/1981
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
BARYONS, COSMOLOGY, NEUTRINOS, PARTICLE MASS, RELATIVISTIC EFFECTS, BACKGROUND RADIATION, FLUCTUATION THEORY, PERTURBATION THEORY, SPACE DENSITY
Bibliographic Code:
1981NYASA.375...32D

Abstract

The consequences of nonzero neutrino mass for several outstanding problems in astrophysics are described and discussed. The universe would in this case be gravitationally dominated by neutrinos, with all dynamical properties being determined by their mass density of approximately 1.0, while baryons may have a density of about 0.03, in agreement with observations of luminous matter and with the implications of the observed deuterium abundance. Because the growth of baryon fluctuations is accelerated by the neutrinos after recombination, background radiation temperature fluctuations may remain as small as less than 0.001, again in agreement with observations. The perturbations of neutrinos are adiabatic, and the damping of these fluctuations in the linear regime determines a characteristic mass which is typical of superclusters. A cellular structure with filaments is predicted on the supercluster scale, with characteristic separations on the order of 15-60 Mpc. 
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