Non-zero rest mass neutrinos and the cosmological constant

Details Non-zero rest mass neutrinos and the cosmological constant Non-zero rest mass neutrinos and the cosmological constant

Nov 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.116...39s&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 116, no. 1, Nov. 1985, p. 39-42.

Statistics

Computation

2

Computational Astrophysics, Constants, Cosmology, Neutrinos, Universe, Dwarf Galaxies, Missing Mass (Astrophysics), Spiral Galaxies

Scientific paper

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.

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