28 citations · 82 across the 14 of their papers we have counts for
15 papers
Boson Star Factory: Past, Present, and Future
Romain Gervalle, Jorge Filipe Mónico Delgado, Etevaldo dos Santos Costa Filho +4
Boson stars are self-gravitating solitons of the Einstein-Klein-Gordon equations for a massive complex scalar field, and arguably the simplest horizonless compact objects arising i…
Bosonic stars with dark electroweak fields
Etevaldo dos Santos Costa Filho, Romain Gervalle
We construct bosonic stars in the Einstein-Weinberg-Salam theory, namely the bosonic sector of the electroweak Standard Model minimally coupled to Einstein's theory of gravity. The…
Test-particle dynamics in a noncommutative deformation of Einstein-Rosen waves
Diego Henrique Carvalho dos Santos, José André Lourenço, Davi C. Rodrigues +1
We investigate phenomenological effects induced by a noncommutative deformation of Einstein--Rosen gravitational-waves within the framework of the Riemannian geometry of noncommuta…
Relativistic and Newtonian Proca Stars: A Tale of Two Limits
Alberto Diez-Tejedor, Carlos Herdeiro, Claudio Lazarte +4
We investigate a representative set of static solitonic solutions of the Einstein-Proca theory in the Newtonian regime, where the field frequency approaches the particle mass, $ω\t…
Multipolar Proca stars: electric, magnetic and hybrid solitons
Carlos Herdeiro, Eugen Radu, Etevaldo dos Santos Costa Filho +1
We construct new families of everywhere regular, asymptotically flat solitons in the Einstein--Proca model, obtained as self-gravitating continuations of flat-spacetime (singular)…
From rotating attractors to extremal black holes with axionic hair
Etevaldo dos Santos Costa Filho
We study extremal, rotating black holes in four-dimensional Einstein-Maxwell-axion (EMA) theory through a combined near-horizon and bulk analysis. At the level of the near-horizon…
Spinning extremal dyonic black holes in Einstein-Maxwell-dilaton theory
Jose Luis Blázquez-Salcedo, Carlos Herdeiro, Eugen Radu +2
We propose a general framework for the study of asymptotically flat spinning dyonic {\it extremal} black holes (eBHs) in Einstein-Maxwell-dilaton theory. Restricting to the s…
Charged, rotating black holes in Einstein-Maxwell-dilaton theory
Carlos Herdeiro, Eugen Radu, Etevaldo dos Santos Costa Filho
The asymptotically flat, electrically charged, rotating black holes (BHs) in Einstein-Maxwell-dilaton (EMd) theory are known in closed form for \textit{only} two particular values…
Universal Relations for Rotating Scalar and Vector Boson Stars
Christoph Adam, Jorge Castelo Mourelle, Etevaldo dos Santos Costa Filho +2
Bosonic stars represent a hypothetical exotic type of compact stellar objects that could be observed from the gravitational signal of coalescing binaries in current and future grav…
Spinning Proca-Higgs balls, stars and hairy black holes
Carlos Herdeiro, Eugen Radu, Etevaldo dos Santos Costa Filho
Recently, spherical and static flat space solitons (balls) and self-gravitating, everywhere regular, asymptotically flat solitons (stars) were constructed in an Einstein-Proca-Higg…
Self-interactions can (also) destabilize bosonic stars
Marco Brito, Carlos Herdeiro, Nicolas Sanchis-Gual +2
We study the dynamical stability of Proca-Higgs stars, in spherical symmetry. These are solutions of the Einstein-Proca-Higgs model, which features a Higgs-like field coupled to a…
The non-spherical ground state of Proca stars
C. A. R. Herdeiro, E. Radu, N. Sanchis-Gual +2
Spherical Proca Stars (PSs) are regarded as the ground state amongst the family of PSs. In accordance, spherical PSs are thought to have a fundamental branch of stable solutions. I…
Proca-Higgs balls and stars in a UV completion for Proca self-interactions
Carlos Herdeiro, Eugen Radu, Etevaldo dos Santos Costa Filho
We consider a Proca-Higgs model wherein a complex vector field gains mass via spontaneous symmetry breaking, by coupling to a real scalar field with a Higgs-type potential. This ve…
Collective coordinates for the hybrid model
C. F. S. Pereira, Etevaldo dos Santos Costa Filho, T. Tassis
In the present work, we carry out the study of scattering solitons for the anti-kink/kink and kink/anti-kink configurations. Furthermore, we can observe the same effects as those d…
The relations between the multipole moments in axistationary electrovacuum spacetimes and the -soliton solution
Etevaldo dos Santos Costa Filho, Angelo guimarães, I. Cabrera-Munguia
A general formulation of the relativistic multipole moments in axistationary electrovac spacetimes is introduced in a closed analytical form. We give a complete description of how…