Speaker
Yadir Garnica
(Division de Ciencias e Ingenier ́ıas, Universidad de Guanajuato)
Description
A complimentary scenario to superradiance is presented based on the possible existence of insta-
bilities in non-rotating black holes. A plausible parameter space for the formation of axion-type
scalar field clouds around black holes in cosmological times is determined, which allows establishing
bounds on the amount of dark matter as primordial black holes through axion-photon coupling.
Additional phenomenological results are commented on.
Primary authors
Yadir Garnica
(Division de Ciencias e Ingenier ́ıas, Universidad de Guanajuato)
Juan Barranco
(Division de Ciencias e Ingenier ́ıas, Universidad de Guanajuato)
L. Urena-Lopez
(Division de Ciencias e Ingenier ́ıas, Universidad de Guanajuato)
