3 papers
gr-qc2026
Strong-lensing degeneracies of black holes embedded in self-interacting scalar field dark matter halos
Mohsen Fathi, Gabriel Gómez
In this paper, we explore the strong gravitational lensing properties of black holes embedded in self-interacting scalar field dark matter halos, together with NFW-type configurati…
astro-ph.CO2026
Perturbative Effects of Dark Matter Environments on Black Hole Shadows
Gabriel Gomez
Constructing spacetime solutions that describe black holes embedded in dark matter environments is a crucial step toward probing the properties of dark matter in the strong-field r…
gr-qc2025
Non-linear causal bulk viscosity in Unified Dark Matter Cosmologies
Guillermo Palma, Gabriel Gomez
We propose a bulk viscous unified dark matter scenario based on a nonlinear extension of the full causal Israel-Stewart theory. This framework allows the viscous fluid to remain fa…