10 papers
Existence of nonrelativistic - and multi--boson stars and their radial stability
Emmanuel Chávez Nambo, Olivier Sarbach
Using direct methods of the calculus of variations we establish the existence of an infinite class of spherically-symmetric solutions to the multi-field Schrödinger-Poisson system…
Linear stability of nonrelativistic Proca stars
Emmanuel Chávez Nambo, Galo Diaz-Andrade, Alberto Diez-Tejedor +3
We study the linear stability of nonrelativistic Proca stars under generic perturbations. Using a combination of analytic and numerical methods, we demonstrate that, as expected, t…
Noble gravitational atoms: Self-gravitating black hole scalar wigs with angular momentum number
Miguel Alcubierre, Juan Barranco, Argelia Bernal +5
We present new spherically symmetric solutions of the Einstein-Klein-Gordon equations in a quasi-stationary approximation that describe self-gravitating scalar field configurations…
Bondi-type accretion onto a Kerr black hole in the kinetic regime
Patryk Mach, Mehrab Momennia, Olivier Sarbach
We derive an exact solution representing a Bondi-type stationary accretion of a kinetic (Vlasov) gas onto the Kerr black hole. The solution is exact in the sense that relevant phys…
Accretion of a Vlasov gas by a Kerr black hole
Patryk Mach, Mehrab Momennia, Olivier Sarbach
We investigate the accretion of a collisionless, relativistic kinetic gas by a rotating Kerr black hole, assuming that at infinity the state of the gas is described by a distributi…
Cosmological evolution of collisionless relativistic gases as dark matter
Francisco X. Linares Cedeño, Ulises Nucamendi, Olivier Sarbach
We study a phenomenological dark matter model described as a collisionless relativistic kinetic gas in a spatially flat Friedmann-Lemaître-Robertson-Walker universe. After normali…