4 papers
Virtual work, thermodynamic structure of the spacetime, and black hole criticality
Dumitru Astefanesei, Gonzalo Casanova, Raul Rojas
We propose a new way to relate the black hole thermodynamics and geometry by generalizing the Euclidean formalism to include "virtual geometries", which do not necessarily satisfy…
Phase Transitions and Black Hole Stability in Gauged N = 8 Supergravity
Andres Anabalon, Dumitru Astefanesei, Julio Oliva +2
It is well known that there is a region of parameter space where all purely electric, static, dilatonic black holes are unstable within the STU models of maximal supergravity. We s…
Thermal superpotential and thermodynamics of neutral hairy black holes in extended SUGRA
Andrès Anabalòn, Dumitru Astefanesei, David Choque +1
We present a family of exact neutral hairy black-hole solutions with spherical horizon topology in extended supergravity with Fayet--Iliopoulos terms. We consider a consistent dila…
(Quasi-)normal modes of rotating black holes and new solitons in Einstein-Gauss-Bonnet
Lilianne Tapia, Monserrat Aguayo, Andrés Anabalón +5
In this paper, we analyze the scalar field (quasi-)normal modes of recently derived rotating black holes within the framework of Einstein-Gauss-Bonnet theory at the Chern-Simons po…