3 papers
gr-qc2026
An analogue first law for general closed marginally trapped surfaces
Ramon Torres
We formulate an analogue transverse first law for general closed marginally trapped surfaces in arbitrary spacetimes. The construction is intrinsically quasi-local and is attached…
gr-qc2026
Observational and theoretical aspects of Superspinars
Ramon Torres
This article delves into the observational signatures and theoretical underpinnings of rotating astrophysical objects, with a particular focus on superspinars -exotic objects chara…
gr-qc2026
Nonsingular Rotating Black Holes in the Dark-Energy Dominated Universe
Ramon Torres
Motivated by quantum-gravity scenarios that replace the classical black hole singularity with a regular core, and by the possibility that the dark-energy sector may be scale depend…