TL;DR
This paper reviews various configurations of boson stars, including their formation, properties, and recent developments in multicomponent solutions, highlighting their significance in gravitational and scalar field theories.
Contribution
It provides a comprehensive overview of boson star solutions, emphasizing recent advances in multicomponent and non-symmetric configurations.
Findings
Boson stars can be spherically symmetric or possess angular momentum.
Recent results include multicomponent boson star solutions.
Boson stars exhibit diverse dynamic properties and configurations.
Abstract
We review particle-like configurations of complex scalar field, localized by gravity, so-called boson stars. In the simplest case, these solutions posses spherical symmetry, they may arise in the massive Einstein-Klein-Gordon theory with global symmetry, as gravitationally bounded lumps of scalar condensate. Further, there are spinning axially symmetric boson stars which possess non-zero angular momentum, and a variety of non-trivial multipolar stationary configurations without any continuous symmetries. In this short overview we discuss important dynamic properties of the boson stars, concentrating on recent results on the construction of multicomponent constellations of boson stars.
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Taxonomy
TopicsCosmology and Gravitation Theories · Geophysics and Gravity Measurements · Pulsars and Gravitational Waves Research