Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...306....9m&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 306, July 1, 1986, p. 9-15. Research supported by the Israel Academy of Sci
Astronomy and Astrophysics
Astrophysics
23
Galactic Clusters, Galactic Structure, Mass Distribution, Missing Mass (Astrophysics), Nonrelativistic Mechanics, Cosmology, Gravitation Theory, Newton Theory, Particle Mass
Scientific paper
A consequence of modified nonrelativistic dynamics (MOND) which is incompatible with the hidden mass hypothesis (HMH) is discussed. If MOND is basically correct, there are mass configurations which, when probed dynamically using Newtonian dynamics will appear to contain negative 'hidden mass', so that the deduced mass density in such systems is, in some regions of space, smaller than the actual density. Generalities concerning the possible appearance of negative hidden mass are discussed, and a general procedure for determining gravitational masses and the conditions for the generation of negative phantom masses is described. Actual configurations where negative phantom mass is expected by MOND are presented, and prospects for detecting such 'negative' densities are discussed.
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