Novel Geometrical Models of Relativistic Stars. II. Incompressible Stars and Heavy Black Dwarfs

Details Novel Geometrical Models of Relativistic Stars. II. Incompressible Stars and Heavy Black Dwarfs Novel Geometrical Models of Relativistic Stars. II. Incompressible Stars and Heavy Black Dwarfs

2004-09-20

arxiv.org/abs/astro-ph/0409458v1

Astronomy and Astrophysics

Astrophysics

13 pages, latex file, 19 figures

Scientific paper

In a series of articles we describe a novel class of geometrical models of relativistic stars. Our approach to the static spherically symmetric solutions of Einstein equations is based on a careful physical analysis of radial gauge conditions. It turns out that there exist heavy black dwarfs: relativistic stars with arbitrary large mass, which are to have arbitrary small radius and arbitrary small luminosity. In the present article we mathematically prove this new phenomena, using a detailed consideration of incompressible GR stars. We study the whole two parameter family of solutions of extended TOV equations for incompressible stars. This example is used to illustrate most of the basic features of the new geometrical models of relativistic stars. Comparison with newest observational data is discussed

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