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arXiv · 0902.4799

Charged Boson Stars and Black Holes

Burkhard Kleihaus·Jutta Kunz·Claus Laemmerzahl·Meike List
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Abstract

We consider boson stars and black holes in scalar electrodynamics with a V-shaped scalar potential. The boson stars come in two types, having either ball-like or shell-like charge density. We analyze the properties of these solutions and determine their domains of existence. When mass and charge become equal, the space-times develop a throat. The shell-like solutions need not be globally regular, but may possess a horizon. The space-times then consist of a Schwarzschild-type black hole in the interior, surrounded by a shell of charged matter, and thus a Reissner-Nordstroem-type space-time in the exterior. These solutions violate black hole uniqueness. The mass of the black hole solutions is related to the mass of the regular shell-like solutions by a mass formula of the type first obtained within the isolated horizon framework.

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Burkhard Kleihaus, Jutta Kunz, Claus Laemmerzahl, Meike List. 2009-02-27. Charged Boson Stars and Black Holes. https://doi.org/10.1016/j.physletb.2009.03.066

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