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Black Holes as Condensation Points of Fuzzy Dark Matter Cores by Palomares-Chavez, Curicaveri; Alvarez-Rios, Ivan; Guzman, Francisco S. is a scholarly article available to read on EtoBox.

What is Black Holes as Condensation Points of Fuzzy Dark Matter Cores about?

We simulate the formation of Fuzzy Dark Matter (FDM) cores in the presence of a Black Hole (BH) to explore whether BHs can serve as seeds for FDM core condensation. Our analysis is based on the core-condensation via the kinetic relaxation process for random initial conditions of the FDM. We show that in general the BH merges with pre-collapsed mini-clusters and once they share location the BH oscillates within the core. The condensation takes place around the black hole and the FDM acquires a density profile consistent with the density of the stationary solution of the FDM+BH eigenvalue problem in average. The central density of the resulting core depends on the mass of the BH, which due to its motion relative to the FDM cloud produces a smaller time-averaged densities for bigger BH masses, which lead to a new diversity of central FDM core densities. Our results indicate that BHs can indeed act as focal points for FDM core condensation. As a collateral result, for our analysis we revised the construction of stationary solutions of FDM+BH and found a phenomenological formula for the FDM density that can be used to fit FDM cores around BHs.

Author

Palomares-Chavez, Curicaveri; Alvarez-Rios, Ivan; Guzman, Francisco S.

Published

2024

Language

EN