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Fermion-Boson Stars as Attractors in Fuzzy Dark Matter and Ideal Gas Dynamics
Iván Alvarez-Rios1, Francisco S Guzmán1, Jens Niemeyer2
1Universidad Michoacana de San Nicolás de Hidalgo. Edificio C-3, Instituto de Física y Matemáticas, Cd. Universitaria, 58040 Morelia, Michoacán, México.
Abstract:
In the context of fuzzy dark matter (FDM) we study the core formation in the presence of an ideal gas (IG). Our analysis is based on the solution of the Schrödinger-Poisson-Euler system of equations that drives the evolution of FDM together with a compressible IG, both coupled through the gravitational potential they produce. Starting from random initial conditions for both FDM and IG, we study the evolution of the system until it forms a nearly relaxed, virialized, and close to hydrostatic equilibrium core, surrounded by an envelope of the two components. We find that the core corresponds to Newtonian fermion-boson stars (FBS). If the IG is used to model luminous matter, our results indicate that FBS behave as attractor core solutions of structure formation of FDM along with visible matter.
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