6 papers
Black hole superradiance in Poincaré gauge theory
Sebastian Bahamonde, Jorge Gigante Valcarcel
We investigate the phenomenon of black hole superradiance in the presence of torsion within the framework of Poincaré gauge theory. In particular, in contrast to the classical app…
An exact five dimensional Weyl-Geometry Gauss-Bonnet Black Hole
Sebastian Bahamonde, Máximo Bañados
We present a new exact black hole solution of a 5-dimensional Weyl-geometry Gauss-Bonnet theory of gravity. The Euclidean sector defines a fully regular metric coupled to the Weyl…
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533
The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…
Cosmological Perturbation Theory in Metric-Affine Gravity
Katsuki Aoki, Sebastian Bahamonde, Jorge Gigante Valcarcel +1
We formulate cosmological perturbation theory around the spatially curved FLRW background in the context of metric-affine gauge theory of gravity which includes torsion and nonmetr…
Dirac-Bergmann analysis and Degrees of Freedom of Coincident -gravity
Kyosuke Tomonari, Sebastian Bahamonde
We investigate the propagating degrees of freedom of -gravity in a -dimensional space-time under the imposition of the coincident gauge by performing the Dirac-Bergmann an…
Kerr-Newman Black Holes in Weyl-Cartan Theory: Shadows and EHT constraints
Khadije Jafarzade, Seyed Hossein Hendi, Mubasher Jamil +1
With the recent release of the black hole image of Sgr A* alongside the earlier image of M87*, one can achieve an in-depth understanding of gravitational physics at the horizon sca…