13 papers
Static Black Holes and Iyer-Wald Entropy in Gravity
I. DÃaz-Saldaña, J. López-DomÃnguez, Wilfredo Yupanqui +3
We investigate static, spherically symmetric black hole solutions in a class of higher-curvature gravitational theories described by a Lagrangian that depends on the Ricci and Kret…
Stability analysis of geodesics in dynamical Chern-Simons black holes: a geometrical perspective
Tonatiuh Tiscareño, Benito RodrÃguez, Javier Chagoya
We apply the Kosambi-Cartan-Chern theory to perform an extensive examination of Jacobi stability of geodesics around rotating black hole solutions to dynamical Chern-Simons gravity…
Signatures of Extended Dark Energy Parametrisations in Structure Formation under Background Constraints
Greco A. Peña, Mario H. Amante, Javier Chagoya +3
We study structure formation in alternative cosmological models constrained by background observations, including CDM, wCDM, the Chevallier-Polarski-Linder parametrisation and…
S-Duality and Categorical Gauge Theory
Javier Chagoya, A. D. López-Hernández, M. Sabido
In this work, we revisit abelian S-duality in the context of higher gauge theory. By using a specific crossed module a set of transformations arise, which are known as the "thin" a…
Strong lensing by GUP-improved black holes
Javier Chagoya, I. DÃaz-Saldaña, Benito RodrÃguez +1
We employ Bozza's method to calculate the deflection angle of light in the presence of the strong gravitational field generated by an improved Schwarzschild-like black hole whose m…
Compact stars in Einstein-scalar-Gauss-Bonnet gravity: regular and divergent scalar field configurations
Roberto D. Alba Q., Javier Chagoya, Armando A. Roque
We investigate static, spherically symmetric solutions in Einstein-scalar-Gauss-Bonnet gravity non-minimally coupled to a massless real scalar field, both in vacuum and in the pres…