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Closed baryonic Universe from photon coolingThe Universe may be critically closed by baryons and not conflict with standard big-bang nucleosynthesis if the comoving number density of photons is reduced after nucleosynthesis. This is accomplished at a temperature of order 10 keV by recoupling the photons to a cold hidden sector via a photon-mixing mechanism. Signatures from supernovae, neutrino backgrounds, and nucleosynthesis are discussed.
Document ID
19910039932
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1103/PhysRevLett.66.541
Authors
Bartlett, J. G. (California Univ. Berkeley, CA, United States)
Hall, L. J. (California, University Berkeley, United States)
Date Acquired
August 15, 2013
Publication Date
February 4, 1991
Publication Information
Publication: Physical Review Letters
Volume: 66
ISSN: 0031-9007
Subject Category
Astrophysics
Accession Number
91A24555
Distribution Limits
Public
Copyright
Other

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