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Complex structures of boson stars and anisotropic distribution of satellite galaxies
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We construct and explore the complex structures of boson stars, drawing inspiration from similar configurations of non-topological solitons in Minkowski space. These "molecular states" of boson stars have a multipolar structure and both positive and negative Noether charges within one star, and the opposite charges swap with time. Thanks to the gravitational attraction, they exist even in the case of a free scalar field. We also explore the effects of scalar self-interactions on these complex structures. We propose to use galactic-scale charge-swapping boson stars as a potential solution to the problem of the observed anisotropic distribution of satellite galaxies.
Forward citations
Cited by 3 Pith papers
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Dipoles and chains of solitons in the Friedberg-Lee-Sirlin model
Stable dipolar boson stars and flat-space Q-ball chains are constructed in the Friedberg-Lee-Sirlin model, and chains beyond the dipole are found unstable in tested cases.
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Quantum fields in boson star spacetime
In boson star spacetimes, the renormalized quantum stress tensor has mostly positive energy density and negative radial pressure that grow with curvature, rivaling the classical stress in the most compact solutions.
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Non-topological solitons and quasi-solitons
A comprehensive review of non-topological solitons (Q-balls) and quasi-solitons (oscillons), their properties, dynamics, and roles in early-universe physics.
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