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Baryon-driven growth of solitonic cores in fuzzy dark matter halos

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arxiv 1911.09614 v2 pith:VVSXPW5W submitted 2019-11-21 astro-ph.CO astro-ph.GAgr-qc

classification astro-ph.COastro-ph.GAgr-qc
keywords darkbaryonscoresmatterfuzzyhalosbaryon-drivenbecome
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We present zoom-in simulations of fuzzy dark matter (FDM) halos including baryons and star-formation with sufficient resolution to follow the formation and evolution of central solitons. We find that their properties are determined by the local dark matter velocity dispersion in the combined dark matter-baryon gravitational potential. This motivates a simple prescription to estimate the radial density profiles of FDM cores in the presence of baryons. As cores become more massive and compact if baryons are included, galactic rotation curve measurements are likely harder to reconcile with FDM.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Soliton self-gravity and core-halo relation in fuzzy dark matter halos

    astro-ph.CO 2024-11 conditional novelty 6.0 of 10

    A two-parameter model including soliton self-gravity shows that simulated fuzzy dark matter cores sit between the self-gravity and host-halo regimes, and that core-halo scatter depends on both halo concentration and c...

  2. Ultralight fuzzy dark matter review

    astro-ph.CO 2025-07 unverdicted novelty 1.0 of 10

    A review of fuzzy dark matter that surveys the models, wave phenomenology, numerical methods, and current observational mass constraints of ultralight dark matter.

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