activity
20232026
most citedShadow and greybody bounding of a regular scale-dependent black hole solution

41 citations · 72 across the 15 of their papers we have counts for

collaborators

15 papers

gr-qc2026

Slowly rotating condensate dark stars beyond the mean-field approximation

Grigoris Panotopoulos, Ángel Rincón, Ilidio Lopes

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…

gr-qc2026

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…

gr-qc2026★ 2 cited

Black hole physics within gravity: Quasi-normal spectra and greybody factors

Ángel 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…

gr-qc2025★ 1 cited

Stellar modeling within regularized 4D Einstein-Gauss-Bonnet gravity in light of current astrophysical constraints

G. Panotopoulos, Á. Rincón, I. Lopes

In this study we obtain interior solutions and investigate structural properties of isotropic compact stars in the framework of four-dimensional regularized Einstein-Gauss-Bonnet (…

gr-qc2025

Quasi-normal modes and shadows of scale-dependent regular black holes

Benjamin Koch, Gonzalo J. Olmo, Ali Riahinia +2

In this paper we investigate how a regular scale-dependent black hole, characterized by a single extra parameter , behaves under perturbations by a test field (quasi-normal mode…

gr-qc2025

Exploring the Structural Properties of Anisotropic Dark Matter-Admixed Quark Stars

G. Panotopoulos, A. Rincón, I. Lopes

We investigate anisotropic compact stars comprising two non-interacting fluids: quark matter and condensed dark matter. Using the MIT Bag model equation of state for quark matter a…

gr-qc2025

Quasinormal modes and absorption cross-section of a Bardeen black hole surrounded by perfect fluid dark matter in four dimensions

Ángel Rincón, Sharmanthie Fernando, Grigoris Panotopoulos +1

In this paper we study quasinormal modes and absorption cross sections for the -dimensional Bardeen black hole surrounded by perfect fluid dark matter. Studies of the massle…

gr-qc2024★ 16 cited

On new regular charged black hole solutions: Limiting Curvature Condition, Quasinormal modes and Shadows

Leonardo Balart, Grigoris Panotopoulos, Angel Rincon

We introduce two new static, spherically symmetric regular black hole solutions that can be obtained from non-linear electrodynamics models. For each solution, we investigate the d…

gr-qc2024

Tidal Love numbers of anisotropic stars within the complexity factor formalism

Ángel Rincón, Grigoris Panotopoulos, Ilídio Lopes

We compute the quadrupolar gravitoelectric tidal Love numbers of spherical configurations made of anisotropic matter. Anisotropies are introduced within the vanishing complexity fa…

gr-qc2024★ 10 cited

An Effective Model for the Quantum Schwarzschild Black Hole: Weak Deflection Angle, Quasinormal Modes and Bounding of Greybody Factor

Ángel Rincón, Ali Övgün, Reggie C. Pantig

In this paper, we thoroughly explore two crucial aspects of a quantum Schwarzschild black solution within four-dimensional space-time: i) the weak deflection angle, ii) the rigorou…

gr-qc2024

Anisotropic Dark Energy Stars within Vanishing Complexity Factor Formalism: Hydrostatic Equilibrium, Radial Oscillations, and Observational Implications

G. Panotopoulos, A. Rincon, I. Lopes

We investigate the structure and radial oscillations of anisotropic compact stars composed of dark energy, using the vanishing complexity factor formalism within general relativity…

gr-qc2024

Thermodynamics of the quantum Schwarzschild black hole

Leonardo Balart, Grigoris Panotopoulos, Ángel Rincón

We discuss some thermodynamic properties as well as the stability of a quantum Schwarzschild black hole, comparing the results with those obtained within a bumblebee gravity model.…

gr-qc2024★ 41 cited

Shadow and greybody bounding of a regular scale-dependent black hole solution

Ali Övgün, Reggie C. Pantig, Ángel Rincón

In this manuscript, we explore the shadow and the greybody bounding characteristics of a regular black hole within 4-dimensional space-time, employing the context of gravity that i…

gr-qc2023★ 2 cited

Discriminating interacting dark energy models using Statefinder diagnostic

Raul Carrasco, Angel Rincon, Joel Saavedra +1

In the present work, we perform a comparative study of different interacting dark energy (DE) models using the Statefinder diagnostics. In particular, 17 different forms of the ene…

gr-qc2023

Gravitationally decoupled Non-Schwarzschild black holes and wormhole space-times

Francisco Tello-Ortiz, Ángel Rincón, A. Alvarez +1

In this article, using gravitational decoupling by means of minimal geometric deformation approach, we obtain a new spherically symmetric and static black hole solution. To progres…