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arXiv · 1106.1267

Chameleon stars

V. Dzhunushaliev·V. Folomeev·D. Singleton
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Abstract

We consider a gravitating spherically symmetric configuration consisting of a scalar field non-minimally coupled to ordinary matter in the form of a perfect fluid. For this system we find static, regular, asymptotically flat solutions for both relativistic and non-relativistic cases. It is shown that the presence of the non-minimal interaction leads to substantial changes both in the radial matter distribution of the star and in the star's total mass. A simple stability test indicates that, for the choice of parameters used in the paper, the solutions are unstable.

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V. Dzhunushaliev, V. Folomeev, D. Singleton. 2011-06-07. Chameleon stars. https://doi.org/10.1103/physrevd.84.084025

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