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http://hdl.handle.net/2248/4378
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. |
URI: | http://hdl.handle.net/2248/4378 |
ISSN: | 0004-640X |
Appears in Collections: | IIAP Publications |
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Non-zero rest mass neutrinos and the cosmological constant | 328.59 kB | Adobe PDF | View/Open |
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