84 citations · 510 across the 39 of their papers we have counts for
39 papers
A comparison between the deflection angles of massive and massless particles in the Shchwarzschild space-time and their consequences on black hole shadows
Sergio Mendoza, Milton Jair Santibañez-Armenta
We present comparisons of the deflection angles of massless and massive particles in the Schwarzschild space-time. For the case of photons in a general static space-time, we constr…
Metric tensor at second perturbation order for spherically symmetric space-times
Sergio Mendoza
It is shown in this article that if the Einstein Equivalence Principle is valid on a particular metric theory of gravitation in a spherically symmetric space-time, then the time me…
Magnetized discs and photon rings around Yukawa-like black holes
Alejandro Cruz-Osorio, Sergio Gimeno-Soler, José A. Font +2
We present stationary solutions of geometrically thick discs (or tori) endowed with a self-consistent toroidal magnetic field distribution surrounding a non-rotating black hole in…
Extending Friedmann equations using fractional derivatives using a Last Step Modification technique: the case of a matter dominated accelerated expanding Universe
E. Barrientos, S. Mendoza, P. Padilla
We present a toy model for extending the Friedmann equations of relativistic cosmology using fractional derivatives. We do this by replacing the integer derivatives, in a few well-…
The matter Lagrangian of an ideal fluid
S. Mendoza, S. Silva
We show that the matter Lagrangian of an ideal fluid equals (up to a sign -depending on its definition and on the chosen signature of the metric) the total energy density of the fl…
Full analytical ultrarelativistic 1D solutions of a planar working surface
M. E. de la Cruz-Hernandez, S. Mendoza
We show that the 1D planar ultrarelativistic shock-tube problem with an ultrarelativistic polytropic equation of state can be solved analytically for the case of a working surface,…