45 citations · 114 across the 7 of their papers we have counts for
7 papers
Black hole shadow of a rotating polytropic black hole by the Newman--Janis algorithm without complexification
E. Contreras, J. M. Ramirez-Velasquez, Á. Rincón +2
In this work, starting from a spherically symmetric polytropic black hole, a rotating solution is obtained by following the Newman--Janis algorithm without complexification. Beside…
Radiative non-isothermal Bondi accretion onto a massive black hole
J. M. Ramirez-Velasquez, L. Di G. Sigalotti, R. Gabbasov +3
In this paper, we present the classical Bondi accretion theory for the case of non-isothermal accretion processes onto a supermassive black hole (SMBH), including the effects of X-…
Relativistic dust accretion onto a scale--dependent polytropic black hole
Ernesto Contreras, Ángel Rincón, J. M. Ramírez-Velasquez
In this work we study steady and spherical relativistic dust accretion onto a static and spherically symmetric scale--dependent black hole. In particular we consider a polytropic s…
Impetus: Consistent SPH calculations of 3D spherical Bondi accretion onto a black hole
J. M. Ramirez-Velasquez, L. Di G. Sigalotti, R. Gabbasov +2
We present three-dimensional calculations of spherically symmetric Bondi accretion onto a stationary supermassive black hole (SMBH) of mass within a radial ran…
Consistent SPH Simulations of Protostellar Collapse and Fragmentation
Ruslan Gabbasov, Leonardo Di G. Sigalotti, Fidel Cruz +2
We study the consistency and convergence of smoothed particle hydrodynamics (SPH), as a function of the interpolation parameters, namely the number of particles , the number of…
X-ray outflows of active galactic nuclei warm absorbers: A 900 ks Chandra simulated spectrum
J. M. Ramirez-Velasquez, J. Garcia
We report on the performance of the statistical, X-ray absorption lines identification procedure XLINE-ID. As illustration, it is used to estimate the time averaged gas density $n_…