Dark matter and the equivalence principle

Details Dark matter and the equivalence principle Dark matter and the equivalence principle

Nov 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phrvl..67.2926f&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 67, Nov. 18, 1991, p. 2926-2929. Research supported by DOE.

Statistics

Computation

39

Computational Astrophysics, Dark Matter, Galactic Clusters, Mass To Light Ratios, Gravitational Effects, Intergalactic Media

Scientific paper

If 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.

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