Articulo
Can fermionic dark matter mimic supermassive black holes?
Registro en:
issn:0218-2718
issn:1793-6594
Autor
Argüelles, Carlos Raúl
Krut, A.
Rueda, Jorge A.
Ruffini, Remo
Institución
Resumen
We analyze the intriguing possibility of explaining both dark mass components in a galaxy: the dark matter (DM) halo and the supermassive dark compact object lying at the center, by a unified approach in terms of a quasi-relaxed system of massive, neutral fermions in general relativity. The solutions to the mass distribution of such a model that fulfill realistic halo boundary conditions inferred from observations, develop a high-density core supported by the fermion degeneracy pressure able to mimic massive black holes at the center of galaxies. Remarkably, these dense core-diluted halo configurations can explain the dynamics of the closest stars around Milky Way’s center (SgrA*) all the way to the halo rotation curve, without spoiling the baryonic bulge-disk components, for a narrow particle mass range mc<sup>2</sup>∼10–10<sup>2</sup>keV. Instituto de Astrofísica de La Plata