Scalar fields as dark matter in spiral galaxies

Details Scalar fields as dark matter in spiral galaxies Scalar fields as dark matter in spiral galaxies

Jan 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000cqgra..17l...9s&link_type=abstract

Class. Quantum Grav., Volume 17, Issue 1, pp. L9-L16 (2000).

Physics

Scientific paper

We present a model for the dark matter in spiral galaxies, which is a result of a static and axial symmetric exact solution of the Einstein-dilaton theory. We suppose that dark matter is a scalar field endowed with a scalar potential. We obtain that (a) the effective energy density goes like 1/(r2+rc2) and (b) the resulting circular velocity profile of test particles is in good agreement with the observed one.

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