234 citations · 3k across the 165 of their papers we have counts for
174 papers
Quasi-periodic oscillations in rotating and deformed spacetimes
Kuantay Boshkayev, Talgar Konysbayev, Yergali Kurmanov +2
Quasi-periodic oscillation (QPOs) analysis is important for understanding the dynamical behavior of many astrophysical objects during transient events such as gamma-ray bursts, sol…
Extended black hole geometrothermodynamics
Hernando Quevedo
Although ordinary laboratory thermodynamic systems are known to be homogeneous systems, black holes are different and cannot be considered within this class. Using the formalism of…
Gravitational repulsive effects in 3D regular black holes
Orlando Luongo, Hernando Quevedo, S. N. Sajadi
In this work, we consider the effects of repulsive gravity in an invariant way for four static 3D regular black holes, using the eigenvalues of the Riemann curvature tensor, the Ri…
Geometrothermodynamic cosmology
Orlando Luongo, Hernando Quevedo
We review the main aspects of geometrothermodynamics, a formalism that uses contact geometry and Riemannian geometry to describe the properties of thermodynamic systems. We show ho…
Repulsive gravity in regular black holes
Orlando Luongo, Hernando Quevedo
We evaluate the effects of repulsive gravity using first order geometric invariants, \textit{i.e.}, the Ricci scalar and the eigenvalues of the Riemann curvature tensor, for three…
Study of ideal gases in curved spacetimes
Luis Aragón-Muñoz, Hernando Quevedo
The influence of a curved spacetime on the physical behavior of an ideal gas of particles is analyzed by considering the phase space of the system as a region of the cotang…