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Pré-Publication, Document De Travail Année : 2024

Galactic Rotation Curves of LSB Galaxies using core-halo FDM configurations

Résumé

In this work, we construct galactic halos in order to fit the rotation curves (RCs) of a sample of low surface brightness (LSB) galaxies. These halos are made of Fuzzy Dark Matter (FDM) with a multimode expansion of non-spherical modes that in average contribute to the appropriate density profile consisting of a core and an envelope needed to fit the rotation curves. These halos are constructed assuming a solitonic core at the center and two types of envelopes, Navarro-Frenk-White and Pseudo-Isothermal density profiles. The resulting FDM configurations are then evolved in order to show how the average density changes in time due to the secular dynamical evolution, along with a condensation process that lead to the growth of the solitonic core.

Dates et versions

hal-04645453 , version 1 (11-07-2024)

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Citer

Ivan Alvarez-Rios, Tula Bernal, Pierre-Henri Chavanis, Francisco S Guzman. Galactic Rotation Curves of LSB Galaxies using core-halo FDM configurations. 2024. ⟨hal-04645453⟩
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