4 citations · 4 across the 2 of their papers we have counts for
4 papers
Primordial Rotating Black Holes
J. A. de Freitas Pacheco, Joseph Silk
Primordial black holes formed in an early post-inflation matter-dominated epoch during preheating provide a novel pathway for a source of the dark matter that utilizes known physic…
Supermassive Black Holes in the Early Universe
José Antonio de Freitas Pacheco
The discovery of high redshift quasars represents a challenge to the origin of supermassive black holes. Here, two evolutionary scenarios are considered. The first one concerns mas…
Quasi-normal modes of black holes and naked singularities: revisiting the WKB method
Edison C. Santos, Júlio C. Fabris, José A. de Freitas Pacheco
In this paper we revisit the analysis of the ringdown frequencies in the form of quasi-normal modes for Schwarzschild,Schwarzschild de-Sitter and Reissner-Nordström space-times. We…
Gravitational waves from binary axionic black holes
J. A. de Freitas Pacheco, S. Carneiro, J. C. Fabris
In a recent paper we have shown that a minimally coupled, self-interacting scalar field of mass can form black holes of mass (in Planck units). If dark matter…