135 citations · 984 across the 46 of their papers we have counts for
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The Evolution of the Baryon Distribution in the Universe from Cosmological Simulations
Fabrice Durier, Jose Antonio de Freitas Pacheco
The evolution of the baryon distribution in different phases, derived from cosmological simulations, are here reported. These computations indicate that presently most of baryons a…
Visser's Massive Gravity Bimetric Theory Revisited
Alain de Roany, Bertrand Chauvineau, J. A. de Freitas Pacheco
A massive gravity theory was proposed by Visser in the late nineties. This theory, based on a backgroung metric and on an usual dynamical metric has the advantage…
Relativistic Accretion into a Reissner-Nordström Black Hole Revisited
J. A. de Freitas Pacheco
The accretion of relativistic and non-relativistic fluids into a Reissner-Nordström black hole is revisited. The position of the critical point, the flow velocity at this point and…
Coalescence Rate of Supermassive Black Hole Binaries Derived from Cosmological Simulations: Detection Rates for LISA and ET
Ch. Filloux, J. A. de Freitas Pacheco, F. Durier +1
The coalescence history of massive black holes has been derived from cosmological simulations, in which the evolution of those objects and that of the host galaxies are followed in…
Hubble flow around Fornax cluster of galaxies
Olga G. Nasonova, José A. de Freitas Pacheco, Igor D. Karachentsev
Aims. This work aims to provide a new mass estimate for the Fornax cluster and the Fornax-Eridanus complex, avoiding methods like the virial or fits of X-ray emission profile, whic…
The Cosmological Constant and the Gravitational Light Bending
Tolu Biressa, J. A. de Freitas Pacheco
The solution of the null non-radial geodesic in a Schwarzschild-de Sitter background is revisited. The gravitational bending of a light ray is affected by the cosmological constant…
Tidal Disruption Flares: The Accretion Disk Phase
Matias Montesinos, José A. de Freitas Pacheco
The evolution of an accretion disk, formed as a consequence of the disruption of a star by a black hole, is followed by solving numerically the hydrodynamic equations. The present…