Charged and radially excited boson stars (in Anti-de Sitter)
Y. Brihaye (University of Mons, Belgium), F. Console (University of, S\~ao Paulo, Brazil), B. Hartmann (University College London, UK)
TL;DR
This paper investigates charged and radially excited boson stars in flat and Anti-de Sitter space, revealing two types of solutions and the persistence of scalar hair formation in different spacetime backgrounds.
Contribution
It identifies two distinct types of radially excited boson star solutions and extends the understanding of scalar hair formation to Anti-de Sitter space.
Findings
Existence of two types of radially excited solutions.
Analytical support for solutions in the linear regime.
Persistence of scalar hair formation in Anti-de Sitter space.
Abstract
We study charged and radially excited boson stars in both asymptotically flat as well as asymptotically Anti-de Sitter space-time. We demonstrate that two different types of radially excited solutions exist~: one that persists in the linear limit of small scalar fields, in which analytical arguments suggest the existence of these solutions, and one that appears only in the highly non-linear regime of the model. We also demonstrate that the formation of wavy scalar hair discussed previously for black holes and boson stars in asymptotically flat space-time persists for asymptotically Anti-de Sitter space-time.
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Taxonomy
TopicsCosmology and Gravitation Theories · Black Holes and Theoretical Physics · Pulsars and Gravitational Waves Research