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Title: Non-zero rest mass neutrinos and the cosmological constant
Authors: Sivaram, C
Keywords: Computational Astrophysics;Constants;Cosmology;Neutrinos;Universe;Dwarf Galaxies;Missing Mass (Astrophysics);Spiral Galaxies
Issue Date: Nov-1985
Publisher: Kluwer Academic Publisher
Citation: Astrophysics and Space Science, Vol. 116, No. 1, pp. 39 - 42
Abstract: Recently it was pointed out that a non-zero cosmological constant can play a role in the formation of neutrino halos only in the case of neutrinos of very low rest mass (mν ≤ 0.1 eV). However, phase-space considerations would require mν > 50 eV if neutrinos dominate the missing mass in halos of large spiral galaxies and moreover mν > 200 eV is implied in the case of dwarf spheroidals. These larger neutrino masses would be in conflict with observed constraints on the age of the Universe unless a cosmological constant is invoked.
ISSN: 0004-640X
Appears in Collections:IIAP Publications

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