2 citations · 2 across the 5 of their papers we have counts for
20 papers
Chromatic Weak Lensing by Charged Black Holes with Two Lorentz-Violating Kalb-Ramond Couplings
Ali Övgün, Reggie C. Pantig, Grigoris Panotopoulos
We study weak gravitational lensing and steady spherical test--fluid accretion by a static charged black hole in a Lorentz--violating Kalb--Ramond background with two nonminimal cu…
Evolution of matter perturbations in the context of cosmic slowing down
D. Koh Cuende, G. Panotopoulos
We investigate dynamical, time-evolving dark-energy models exhibiting phantom behaviour within Einstein gravity by analysing the evolution of matter perturbations. In particular, w…
On Modeling Anisotropic Quark Stars: The Role of Anisotropy in Radial Oscillation Spectra
G. Panotopoulos
We model the compact object Cen X-3, which is considered to be a good strange quark star candidate of known mass and radius, incorporating a negative anisotropic factor, and we com…
Slowly rotating condensate dark stars beyond the mean-field approximation
Grigoris Panotopoulos, Ãngel Rincón, Ángel Rincón +1
We investigate rotational properties and universal relations of slowly rotating Bose-Einstein condensate dark stars in the context of General Relativity, both at the mean-field lev…
Radial oscillations of quark stars in light of current astrophysical constraints: A comparative study
G. Panotopoulos, A. Rincon, I. Lopes
We investigate the structural and oscillatory properties of isotropic strange quark stars within General Relativity, focusing on three physically motivated equations of state: the…
Black hole physics within gravity: Quasi-normal spectra and greybody factors
Ãngel Rincón, Grigoris Panotopoulos
We investigate several astrophysical motivated properties of a four-dimensional black hole solution in the framework of gravity. The model is characterized by a single addit…