3 papers
gr-qc2025
Massive Particle Motion Around Horndeski Black Holes
D. A. Carvajal, P. A. González, Marco Olivares +2
The time-like structure of the four-dimensional asymptotically flat Horndeski black holes is studied in detail. Focusing on the motion of massive neutral test particles, we constru…
gr-qc2025
Nonlinear Scalarization of Schwarzschild Black Hole in Scalar-Torsion Teleparallel Gravity
P. A. González, Eleftherios Papantonopoulos, JoaquÃn Robledo +1
We consider a scalar field coupled to the torsion in Teleparallel Gravity with a coupling function that does not allow for a tachyonic instability to occur, and it leads to the for…
gr-qc2024
Massive Scalar Field Perturbations of Black Holes Immersed in Chaplygin-Like Dark Fluid
Ramón Bécar, P. A. González, Eleftherios Papantonopoulos +1
We consider massive scalar field perturbations in the background of black holes immersed in Chaplygin-like dark fluid (CDF), and we analyze the photon sphere modes, the de Sitter m…