532 citations · 4.8k across the 77 of their papers we have counts for
77 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 appr…
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.…
Spherically symmetric vacuum solutions in 1-Parameter New General Relativity and their phenomenology
Helen Asuküla, Sebastian Bahamonde, Manuel Hohmann +3
In this work, we study spherically symmetric vacuum solutions in 1-parameter New General Relativity (NGR), a specific theory in teleparallel gravity which is constructed from the t…
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…
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…
Symmetric Teleparallel Gauss-Bonnet Gravity and its Extensions
Juan Manuel Armaleo, Sebastian Bahamonde, Georg Trenkler +1
General Teleparallel theories assume that curvature is vanishing in which case gravity can be solely represented by torsion and/or nonmetricity. Using differential form language, w…
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…
Distinctive Features of Hairy Black Holes in Teleparallel Gauss-Bonnet Gravity
Sebastian Bahamonde, Daniela D. Doneva, Ludovic Ducobu +2
We examine the teleparallel formulation of non-minimally coupled scalar Einstein-Gauss-Bonnet gravity. In the teleparallel formulation, gravity is described by torsion instead of c…
Algebraic classification of the gravitational field in Weyl-Cartan space-times
Sebastian Bahamonde, Jorge Gigante Valcarcel
We present a complete algebraic classification for the curvature tensor in Weyl-Cartan geometry, by applying methods of eigenvalues and principal null directions on its irreducible…
Symmetric Teleparallel Horndeski Gravity
Sebastian Bahamonde, Georg Trenkler, Leonardo G. Trombetta +1
Horndeski gravity is the most general scalar-tensor theory with one scalar field leading to second-order Euler-Lagrange field equations for the metric and scalar field, and it is b…
Spontaneous Scalarization of Black Holes in Gauss-Bonnet Teleparallel Gravity
Sebastian Bahamonde, Daniela D. Doneva, Ludovic Ducobu +2
In this paper, we find new scalarized black holes by coupling a scalar field with the Gauss-Bonnet invariant in Teleparallel gravity. The Teleparallel formulation of this theory us…
Thick accretion disk configurations in the Born-Infeld teleparallel gravity
Sebastian Bahamonde, Shokoufe Faraji, Eva Hackmann +1
The main goal of this paper is to investigate one of the important astrophysical systems, namely Thick accretion disks, in the background of the spherically symmetric solution in B…
New black hole solutions with a dynamical traceless nonmetricity tensor in Metric-Affine Gravity
Sebastian Bahamonde, Johann Chevrier, Jorge Gigante Valcarcel
In the framework of Metric-Affine Gravity, the existing correspondence between the Einstein tensor and the energy-momentum tensor of matter provided by General Relativity is extend…
Coincident gauge for static spherical field configurations in symmetric teleparallel gravity
Sebastian Bahamonde, Laur Järv
In symmetric teleparallel gravities, where the independent connection is characterized by nonmetricity while curvature and torsion are zero, it is possible to find a coordinate sys…
Black hole solutions in scalar-tensor symmetric teleparallel gravity
Sebastian Bahamonde, Jorge Gigante Valcarcel, Laur Järv +1
Symmetric teleparallel gravity is constructed with a nonzero nonmetricity tensor while both torsion and curvature are vanishing. In this framework, we find exact scalarised spheric…
Testing Born-Infeld teleparallel gravity through Sgr A observations
Kimet Jusufi, Salvatore Capozziello, Sebastian Bahamonde +1
We use observational data from the S2 star orbiting around the Galactic Center to constrain a black hole solution of extended teleparallel gravity models. Subsequently, we construc…
Perturbations in Non-Flat Cosmology for gravity
Sebastian Bahamonde, Konstantinos F. Dialektopoulos, Manuel Hohmann +3
The study of cosmological perturbation theory in gravity is a topic of great interest in teleparallel gravity since this is one of the simplest generalizations of the theory…
Scalarized Black Holes in Teleparallel Gravity
Sebastian Bahamonde, Ludovic Ducobu, Christian Pfeifer
Black holes play a crucial role in the understanding of the gravitational interaction. Through the direct observation of the shadow of a black hole by the event horizon telescope a…
Plebański-Demiański solutions with dynamical torsion and nonmetricity fields
Sebastian Bahamonde, Jorge Gigante Valcarcel, Laur Järv
We construct Plebański-Demiański stationary and axisymmetric solutions with two expanding and double principal null directions in the framework of Metric-Affine gauge theory of gra…
Quantum gravity phenomenology at the dawn of the multi-messenger era -- A review
A. Addazi, J. Alvarez-Muniz, R. Alves Batista +157
The exploration of the universe has recently entered a new era thanks to the multi-messenger paradigm, characterized by a continuous increase in the quantity and quality of experim…
Black Holes in Gravity: Exact and Perturbed Solutions
Sebastian Bahamonde, Alexey Golovnev, María-José Guzmán +2
Spherically symmetric solutions of theories of gravity built one fundamental class of solutions to describe compact objects like black holes and stars. Moreover, they serve as star…
Rotating Kerr-Newman space-times in Metric-Affine Gravity
Sebastian Bahamonde, Jorge Gigante Valcarcel
We present new rotating vacuum configurations endowed with both dynamical torsion and nonmetricity fields in the framework of Metric-Affine gauge theory of gravity. For this task,…
Teleparallel Gravity: From Theory to Cosmology
Sebastian Bahamonde, Konstantinos F. Dialektopoulos, Celia Escamilla-Rivera +7
Teleparallel gravity has significantly increased in popularity in recent decades, bringing attention to Einstein's other theory of gravity. In this Review, we relate this form of g…