Spherically symmetric steady states of galactic dynamics in scalar gravity

Details Spherically symmetric steady states of galactic dynamics in scalar gravity Spherically symmetric steady states of galactic dynamics in scalar gravity

2003-01-24

arxiv.org/abs/math-ph/0301031v3

Class.Quant.Grav. 20 (2003) 1729-1742

Physics

Mathematical Physics

13 pages, mistypos corrected

Scientific paper

The kinetic motion of the stars of a galaxy is considered within the framework of a relativistic scalar theory of gravitation. This model, even though unphysical, may represent a good laboratory where to study in a rigorous, mathematical way those problems, like the influence of the gravitational radiation on the dynamics, which are still beyond our present understanding of the physical model represented by the Einstein--Vlasov system. The present paper is devoted to derive the equations of the model and to prove the existence of spherically symmetric equilibria with finite radius.

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