Journal ArticleDOI
Stability of a Schwarzschild Singularity
TLDR
In this article, it was shown that a Schwarzschild singularity, spherically symmetrical and endowed with mass, will undergo small vibrations about the spherical form and therefore remain stable if subjected to a small nonspherical perturbation.Abstract:
It is shown that a Schwarzschild singularity, spherically symmetrical and endowed with mass, will undergo small vibrations about the spherical form and will therefore remain stable if subjected to a small nonspherical perturbation.read more
Citations
More filters
Journal ArticleDOI
Black hole stability under odd-parity perturbations in Horndeski gravity
TL;DR: In this paper, the stability under linear odd-parity perturbations of static spherically symmetric black holes in Horndeski gravity was studied and the conditions of no-ghost and Laplacian instability were derived.
Journal ArticleDOI
Casimir energy and black hole pair creation in Schwarzschild-de Sitter spacetime
TL;DR: In this paper, the Schwarzschild-de Sitter and the de Sitter space energy difference are calculated for manifolds with boundaries and the existence of an unstable mode even for the non-degenerate case is discovered.
Journal ArticleDOI
Expanded evasion of the black hole no-hair theorem in dilatonic Einstein-Gauss-Bonnet theory
Bum-Hoon Lee,Wonwoo Lee,Daeho Ro +2 more
TL;DR: In this paper, the authors considered the case of a negative Gauss-Bonnet coefficient α within the coupling function, f(ϕ)=αeγϕ, in an asymptotically flat spacetime, and constructed the new integral constraint allowing the existence of the hairy solutions with the negative coefficient α.
Journal ArticleDOI
Dynamical l-boson stars: Generic stability and evidence for nonspherical solutions
Víctor J. Jaramillo,Nicolas Sanchis-Gual,Juan Barranco,Argelia Bernal,Juan Carlos Degollado,Carlos A. R. Herdeiro,Darío Núñez +6 more
TL;DR: In this paper, the stability of single-field boson stars against nonspherical perturbations was investigated by performing numerical evolutions of the Einstein-Klein-Gordon system, with a 3D code.
Journal ArticleDOI
Quasinormal modes, echoes and the causal structure of the Green's function
TL;DR: In this paper, the authors consider the linearized perturbation equation with two potentials having disjoint bounded support and show that over short time scales the evolution is governed by the quasinormal frequencies of the individual potentials, while the sensitivity to global structure can be understood in terms of echoes.