Compact (A)dS Boson Stars and Shells
General Relativity and Quantum Cosmology
2014-12-10 v1 High Energy Physics - Phenomenology
High Energy Physics - Theory
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.
Keywords
Cite
@article{arxiv.1310.3632,
title = {Compact (A)dS Boson Stars and Shells},
author = {Betti Hartmann and Burkhard Kleihaus and Jutta Kunz and Isabell Schaffer},
journal= {arXiv preprint arXiv:1310.3632},
year = {2014}
}
Comments
18 pages including 10 figures