Testing modifications of gravity

Details Testing modifications of gravity Testing modifications of gravity

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...345l..17l&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 345, Oct. 1, 1989, p. L17-L19.

Astronomy and Astrophysics

Astrophysics

33

Dwarf Galaxies, Galactic Structure, Gravitational Effects, Dark Matter, Galactic Rotation, Mass To Light Ratios

Scientific paper

Milgrom's (1983) non-Newtonian theory that dark matter is caused by a change in the law of gravity at low accelerations (10 to the -8th cm/sq s), is tested. Six dwarf galaxies with low accelerations are modeled, showing that Milgrom's theory fails for these galaxies. It is found that because these systems have large H I mass/luminosity ratios the non-Newtonian theory cannot be fitted by arbitrarily lowering the mass-to-light ratio of the stellar component.

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