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Galactic Halos and rotating bosonic dark matter

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abstract

Rotating bosonic dark matter halos are considered as potential candidates for modeling dark matter in galactic halos. These bosonic dark matter halos can be viewed as a dilute and very extended version of bosonic stars, and the methods used for the calculation and analysis of the latter objects can be directly applied. Bosonic stars, a hypothetical type of astrophysical objects, are categorized into two primary families, based on the nature of the particles composing them: Einstein-Klein-Gordon stars and Proca stars. We examine various models from both families and the rotation curves which their contribution induces in different galaxies, to identify the most plausible candidates that explain the flattening of orbital velocities observed in galactic halos. By exploring different combinations of our dark matter models with observable galactic features, we propose an interesting source to compensate for the apparent lack of matter in dwarf and spiral galaxies, providing a possible explanation for this longstanding astronomical puzzle.

fields

gr-qc 1

years

2024 1

verdicts

CONDITIONAL 1

representative citing papers

Proca stars in excited states

gr-qc · 2024-11-13 · conditional · novelty 6.0

Excited Proca stars are always unstable: under perturbations they collapse, disperse, or migrate to the ground state, with migration possible only for a narrow set of negative-binding-energy configurations.

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  • Proca stars in excited states gr-qc · 2024-11-13 · conditional · none · ref 14 · internal anchor

    Excited Proca stars are always unstable: under perturbations they collapse, disperse, or migrate to the ground state, with migration possible only for a narrow set of negative-binding-energy configurations.