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arXiv · 1310.3632

Compact (A)dS Boson Stars and Shells

Betti Hartmann·Burkhard Kleihaus·Jutta Kunz·Isabell Schaffer
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Abstract

We present compact Q-balls in an (Anti-)de Sitter background in D dimensions, obtained with a V-shaped potential of the scalar field. Beyond critical values of the cosmological constant compact Q-shells arise. By including the gravitational back-reaction, we obtain boson stars and boson shells with (Anti-)de Sitter asymptotics. We analyze the physical properties of these solutions and determine their domain of existence. In four dimensions we address some astrophysical aspects.

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Betti Hartmann, Burkhard Kleihaus, Jutta Kunz, Isabell Schaffer. 2013-10-14. Compact (A)dS Boson Stars and Shells. https://doi.org/10.1103/physrevd.88.124033

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