Non-zero rest mass neutrinos and the cosmological constant

Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/4368

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 Publishers
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.
URI:	http://hdl.handle.net/2248/4368
ISSN:	0004-640X
Appears in Collections:	IIAP Publications

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