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Potential--density pairs for spherical galaxies and bulges: the influence of scalar fields

M. A. Rodriguez-Meza·Jorge L. Cervantes-Cota
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Abstract

A family of potential--density pairs has been found for spherical halos and bulges of galaxies in the Newtonian limit of scalar--tensor theories of gravity. The scalar field is described by a Klein--Gordon equation with a source that is coupled to the standard Poisson equation of Newtonian gravity. The net gravitational force is given by two contributions: the standard Newtonian potential plus a term stemming from massive scalar fields. General solutions have been found for spherical systems. In particular, we compute potential--density pairs of spherical galactic systems, and some other astrophysical quantities that are relevant to generating initial conditions for spherical galaxy simulations.

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M. A. Rodriguez-Meza, Jorge L. Cervantes-Cota. 2004-01-27. Potential--density pairs for spherical galaxies and bulges: the influence of scalar fields. https://doi.org/10.1111/j.1365-2966.2004.07674.x

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