activity
20192026
most citedHinting a dark matter nature of Sgr A* via the S-stars

72 citations · 220 across the 13 of their papers we have counts for

collaborators

13 papers

gr-qc2026

Nonradial oscillations of realistic anisotropic neutron stars: Polar modes

L. M. Becerra, José F. Rodríguez-Ruiz, E. A. Becerra-Vergara +1

In this work, we study the polar perturbations of static, spherically symmetric neutron stars with anisotropic pressure in full general relativity, including linear-order perturbat…

gr-qc2025

On the Stability of Anisotropic Neutron Stars

L. M. Becerra, E. A. Becerra-Vergara, F. D. Lora-Clavijo +1

We model anisotropic neutron stars using three distinct prescriptions for pressure anisotropy, the Horvat, Bowers-Liang, and Covariant models, and three equations of state with dif…

astro-ph.GA2025★ 1 cited

The dynamics of S-stars and G-sources orbiting a supermassive compact object made of fermionic dark matter

Valentina Crespi, Carlos R. Argüelles, Eduar A. Becerra-Vergara +4

Surrounding Sgr A*, a cluster of young and massive stars coexist with a population of dust-enshrouded objects, whose astrometric data can be used to scrutinize the nature of Sgr A*…

gr-qc2024

Slowly Rotating Anisotropic Neutron Stars with a Parametrized Equation of State

L. M. Becerra, E. A. Becerra-Vergara, F. D. Lora-Clavijo

In this work, we study the impact of anisotropy on slowly rotating neutron stars by extending the Hartle-Thorne formalism in general relativity to include anisotropy in pressure up…

astro-ph.HE2024★ 1 cited

Realistic Anisotropic Neutron Stars: Pressure Effects

L. M. Becerra, E. A. Becerra-Vergara, F. D. Lora-Clavijo

In this paper, we study the impact of anisotropy on neutron stars with different equations of state, which have been modeled by a piecewise polytropic function with continuous soun…

gr-qc2023★ 8 cited

The -metric naked singularity: A viable explanation for the nature of the central object in the Milky Way

F. D. Lora-Clavijo, G. D. Prada-Méndez, L. M. Becerra +1

In this work, we investigate whether the compact object at the center of the Milky Way is a naked singularity described by the -metric spacetime. Our fitting of the ast…