3 papers
gr-qc2026
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…
gr-qc2026
Photon spheres in dynamical space-times
David DÃaz-Guerra, Ãngel Rincón, Diego Rubiera-Garcia
The characterization of the photon region -- i.e. the region of space-time filled with unstable bound null geodesics -- is critical to understand the behavior of radiation near a c…
gr-qc2025
Charged black holes in Kalb-Ramond gravity: Weak Deflection Angle, Shadow cast, Quasinormal Modes and Neutrino annihilation
Reggie C. Pantig, Ali Ãvgün, Ãngel Rincón
In this paper, we investigate the phenomenology of electrically charged black holes in a Lorentz-violating gravitational framework mediated by a background Kalb-Ramond (KR) antisym…