242 citations · 1.6k across the 29 of their papers we have counts for
30 papers
Einstein-Dirac-Maxwell wormholes: ansatz, construction and properties of symmetric solutions
Jose Luis Blázquez-Salcedo, Christian Knoll, E. Radu
We present a discussion of the traversable wormholes in Einstein-Dirac-Maxwell theory recently reported in e-Print: 2010.07317. This includes a detailed description of the ansatz a…
Scalarized Black Holes
Jose Luis Blázquez-Salcedo, Burkhard Kleihaus, Jutta Kunz
Black holes represent outstanding astrophysical laboratories to test the strong gravity regime, since alternative theories of gravity may predict black hole solutions whose may dif…
Modified Gravity and Cosmology: An Update by the CANTATA Network
Emmanuel N. Saridakis, Ruth Lazkoz, Vincenzo Salzano +50
General Relativity and the CDM framework are currently the standard lore and constitute the concordance paradigm. Nevertheless, long-standing open theoretical issues, as well as…
Ellis Wormholes in Anti-De Sitter Space
Jose Luis Blázquez-Salcedo, Xiao Yan Chew, Jutta Kunz +1
We construct traversable wormholes with anti-de Sitter asymptotics supported by a phantom field. These wormholes are massless and symmetric with respect to reflection of the radial…
Critical solutions of scalarized black holes
Jose Luis Blázquez-Salcedo, Sarah Kahlen, Jutta Kunz
We consider charged black holes with scalar hair obtained in a class of Einstein-Maxwell-scalar models, where the scalar field is coupled to the Maxwell invariant with a quartic co…
Quasinormal modes of hot, cold and bald Einstein-Maxwell-scalar black holes
Jose Luis Blázquez-Salcedo, Carlos A. R. Herdeiro, Sarah Kahlen +3
Einstein-Maxwell-scalar models allow for different classes of black hole solutions, depending on the non-minimal coupling function employed, between the scalar field and the…
Polar quasinormal modes of the scalarized Einstein-Gauss-Bonnet black holes
Jose Luis Blázquez-Salcedo, Daniela D. Doneva, Sarah Kahlen +3
We study the polar quasinormal modes of spontaneously scalarized black holes in Einstein-Gauss-Bonnet theory. In previous works we showed that a set of nodeless solutions of the fu…
Axial perturbations of the scalarized Einstein-Gauss-Bonnet black holes
Jose Luis Blázquez-Salcedo, Daniela D. Doneva, Sarah Kahlen +3
We study the axial perturbations of spontaneously scalarized black holes in Einstein-Gauss-Bonnet (EGB) theories. We consider the nodeless solutions of the fundamental branch of th…
Einstein-Maxwell-scalar black holes: the hot, the cold and the bald
Jose Luis Blázquez-Salcedo, Carlos A. R. Herdeiro, Jutta Kunz +2
The phenomenon of spontaneous scalarisation of charged black holes (BHs) has recently motivated studies of various Einstein-Maxwell-scalar models. Within these models, different cl…
Dynamically and thermodynamically stable black holes in Einstein-Maxwell-dilaton gravity
Dumitru Astefanesei, Jose Luis Blázquez-Salcedo, Carlos Herdeiro +2
We consider Einstein-Maxwell-dilaton gravity with the non-minimal exponential coupling between the dilaton and the Maxwell field emerging from low energy heterotic string theory. T…
Quasinormal modes of dilatonic Reissner-Nordström black holes
Jose Luis Blázquez-Salcedo, Sarah Kahlen, Jutta Kunz
We calculate the quasinormal modes of static spherically symmetric dilatonic Reissner-Nordström black holes for general values of the electric charge and of the dilaton coupling co…
Constructing spherically symmetric Einstein-Dirac systems with multiple spinors: Ansatz, wormholes and other analytical solutions
Jose Luis Blázquez-Salcedo, Christian Knoll
In this paper we present a detailed calculation of an Ansatz that allows to obtain spherically symmetric Einstein-Dirac configurations in -dimensions. We show that this is possi…
Boson and Dirac stars in dimensions
Jose Luis Blázquez-Salcedo, Christian Knoll, Eugen Radu
We present a comparative study of spherically symmetric, localized, particle-like solutions for spin and gravitating fields in a -dimensional, asymptotically flat…
Axial quasi-normal modes of scalarized neutron stars with massive self-interacting scalar field
Zahra Altaha Motahar, Jose Luis Blázquez-Salcedo, Daniela D. Doneva +2
We study the axial quasi-normal modes of neutron stars in scalar-tensor theories with massive scalar field including a self-interacting term in the potential. Various realistic equ…
Quasinormal modes of Dirac spinors in the background of rotating black holes in four and five dimensions
Jose Luis Blázquez-Salcedo, Christian Knoll
We study the quasinormal modes of massive Dirac spinors in the background of rotating black holes. In particular, we consider the Kerr geometry as well as the five dimensional Myer…
Solutions of the massive Dirac equation in the near-horizon metric of the extremal five dimensional Myers-Perry black hole with equal angular momenta
Jose Luis Blázquez-Salcedo, Christian Knoll
We study massive Dirac fields in the background of the near-horizon limit of the extremal Myers-Perry black hole in five dimensions. We consider the case in which both angular mome…
Axial Quasi-Normal Modes of Scalarized Neutron Stars with Realistic Equations of State
Zahra Altaha Motahar, Jose Luis Blázquez-Salcedo, Burkhard Kleihaus +1
We compute the axial quasi-normal modes of static neutron stars in scalar tensor theory. In particular, we employ various realistic equations of state including nuclear, hyperonic…
Scalar and axial quasinormal modes of massive static phantom wormholes
Jose Luis Blázquez-Salcedo, Xiao Yan Chew, Jutta Kunz
We study the quasinormal modes for scalar, axial and radial perturbations of massive static spherically symmetric wormholes supported by a phantom scalar field, calculating the mod…
Radial perturbations of the scalarized EGB black holes
Jose Luis Blázquez-Salcedo, Daniela D. Doneva, Jutta Kunz +1
Recently a new class of scalarized black holes in Einstein-Gauss-Bonnet (EGB) theories was discovered. What is special for these black hole solutions is that the scalarization is n…
Axial quasi-normal modes of neutron stars in gravity
Jose Luis Blázquez-Salcedo, Daniela D. Doneva, Jutta Kunz +2
In the present paper the axial quasi-normal modes of neutron stars in gravity are examined using a large set of equations of state. The numerical calculations are made using…
Axial quasinormal modes of static neutron stars in the nonminimal derivative coupling sector of Horndeski gravity: spectrum and universal relations for realistic equations of state
Jose Luis Blázquez-Salcedo, Kevin Eickhoff
We study axial quasinormal modes of static neutron stars in the nonminimal derivative coupling sector of Horndeski theory. We focus on the fundamental curvature mode, which we anal…
New black holes in minimal gauged supergravity: Deformed boundaries and frozen horizons
Jose Luis Blázquez-Salcedo, Jutta Kunz, Francisco Navarro-Lérida +1
A new class of black hole solutions of the five dimensional minimal gauged supergravity is presented. They are characterized by the mass, the electric charge, two equal magnitude a…
Slowly damped quasinormal modes of the massive Dirac field in d-dimensional Tangherlini spacetime
Jose Luis Blázquez-Salcedo, Christian Knoll
We consider quasinormal modes of the massive Dirac field in the background of a Schwarzschild- Tangherlini black hole. Different dimensions of the spacetime are considered, from d…
Scalarization of neutron stars with realistic equations of state
Zahra Altaha Motahar, Jose Luis Blázquez-Salcedo, Burkhard Kleihaus +1
We consider the effect of scalarization on static and slowly rotating neutron stars for a wide variety of realistic equations of state, including pure nuclear matter, nuclear matte…