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Dark matter and the equivalence principleIf the dark matter in galaxies and clusters is nonbaryonic, it can interact with additional long-range fields that are invisible to experimental tests of the equivalence principle. The astrophysical and cosmological implications of a long-range force coupled only to the dark matter are discussed and rather tight constraints on its strength are found. If the force is repulsive (attractive), the masses of galaxy groups and clusters (and the mean density of the universe inferred from them) have been systematically underestimated (overestimated). Such an interaction also has unusual implications for the growth of large-scale structure.
Document ID
19920031853
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Frieman, Joshua A.
(NASA Lewis Research Center Cleveland, OH, United States)
Gradwohl, Ben-Ami
(NASAFermi National Accelerator Laboratory Batavia, IL, United States)
Date Acquired
August 15, 2013
Publication Date
November 18, 1991
Publication Information
Publication: Physical Review Letters
Volume: 67
ISSN: 0031-9007
Subject Category
Astrophysics
Accession Number
92A14477
Funding Number(s)
CONTRACT_GRANT: NAGW-1340
Distribution Limits
Public
Copyright
Other

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