54 citations · 296 across the 19 of their papers we have counts for
19 papers
Observational Features of Nonsingular Rotating Black Holes in the Dark-Energy Dominated Universe
Ramon Torres
Recent DESI baryon acoustic oscillation measurements, combined with cosmic microwave background and type-Ia supernova data, suggest that dark energy may evolve with cosmic time. Al…
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…
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…
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…
The Interiors of Singularity-Free Rotating Black Holes
Ramon Torres
General Relativity provides us with some solutions for rotating black holes. However, there are some problems associated with them: the appearance of singularities, the possibility…
Regular Rotating Black Holes: A Review
Ramón Torres
The collapse of astrophysically significant bodies generates, under suitable conditions, black holes. Since one expects the generator of the black hole to be a rotating body, the b…
Non-Singular Black Holes, the Cosmological Constant and Asymptotic Safety
Ramon Torres
Quantum gravitational effects in black hole spacetimes with a cosmological constant are considered. The effective quantum spacetimes for the black holes are constructed by taki…
Non-singular quantum improved rotating black holes and their maximal extension
R. Torres
We add a prescription to the Newman-Janis algorithm in order to use it as a means of finding new extended (`through r<0') rotating black hole spacetimes from static spherically sym…
On regular rotating black holes
Ramon Torres, Francesc Fayos
Different proposals for regular rotating black hole spacetimes have appeared recently in the literature. However, a rigorous analysis and proof of the regularity of this kind of sp…
On the quantum corrected gravitational collapse
Ramon Torres, Francesc Fayos
Based on a previously found general class of quantum improved exact solutions composed of non-interacting (dust) particles, we model the gravitational collapse of stars. As the mod…
Particle production from marginally trapped surfaces of general spacetimes
José M. M. Senovilla, Ramón Torres
We provide a general formalism that allows to analyze the phenomenon of tunneling in arbitrary spacetimes. We show that a flux of particles produced by tunneling through general ma…
Singularity free gravitational collapse in an effective dynamical quantum spacetime
R. Torres, F. Fayos
We model the gravitational collapse of heavy massive shells including its main quantum corrections. Among these corrections, quantum improvements coming from Quantum Einstein Gravi…
Singularity-free gravitational collapse and asymptotic safety
R. Torres
A general class of quantum improved stellar models with interiors composed of non-interacting ('dust') particles is obtained and analyzed in a framework compatible with asymptotic…
The mechanism why colliders could create quasi-stable black holes
R. Torres, F. Fayos, O. Lorente-Espin
It has been postulated that black holes could be created in particle collisions within the range of the available energies for nowadays colliders (LHC). In this paper we analyze th…
On the interior of (Quantum) Black Holes
Ramon Torres
Different approaches to quantum gravity conclude that black holes may possess an inner horizon, in addition to the (quantum corrected) outer `Schwarzschild' horizon. In this paper…
Evaporation of (quantum) black holes and energy conservation
R. Torres, F. Fayos, O. Lorente-Espin
We consider Hawking radiation as due to a tunneling process in a black hole were quantum corrections, derived from Quantum Einstein Gravity, are taken into account. The consequent…
On the causal characterization of singularities in spherically symmetric spacetimes
Francesc Fayos, Ramon Torres
The causal character of the zero-areal-radius (R=0) singularity in spherically symmetric spacetimes is studied. By using the techniques of the qualitative behaviour of dynamic syst…
On the invariant causal characterization of singularities in spherically symmetric spacetimes
Francesc Fayos, Ramon Torres
The causal character of singularities is often studied in relation to the existence of naked singularities and the subsequent possible violation of the cosmic censorship conjecture…
Spherically symmetric models for charged radiating stars and voids: Theoretical approach
Francesc Fayos, Jose M. M. Senovilla, Ramon Torres
We study the matching of a general spherically symmetric spacetime with a Vaidya-Reissner-Nordstrom solution. To that end, we study the properties of spherically symmetric electrom…