Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Bécar, Ramón"'
We consider massive scalar field perturbations in the background of black holes immersed in Chaplygin-like dark fluid (CDF), and we analyze the photon sphere modes, the de Sitter modes as well as the near extremal modes and discuss their dominance, b
Externí odkaz:
http://arxiv.org/abs/2403.11306
We consider scalar field perturbations in the background of black holes immersed in perfect fluid dark matter (PFDM). We find, by using the sixth order Wentzel-Kramers-Brillouin (WKB) approximation, that the longest-lived modes are the ones with high
Externí odkaz:
http://arxiv.org/abs/2310.00857
In this work we consider the propagation of massive scalar fields in the background of Weyl black holes and we mainly study the effect of the scalar field mass in the spectrum of the quasinormal frequencies (QNFs) via the Wentzel-Kramers-Brillouin (W
Externí odkaz:
http://arxiv.org/abs/2304.00663
We consider the propagation of a charged massive scalar field in the background of a four-dimensional Ernst black hole and study its stability analyzing the quasinormal modes (QNMs), which are calculated using the semi-analytical Wentzel-Kramers-Bril
Externí odkaz:
http://arxiv.org/abs/2211.02931
In this work we consider black hole solutions to Einstein theory coupled to a nonlinear power-law electromagnetic field with a fixed exponent value. We study the extended phase space thermodynamics in canonical and grand canonical ensembles where the
Externí odkaz:
http://arxiv.org/abs/2011.14239
Autor:
Bécar, Ramón1 (AUTHOR), González, P. A.2 (AUTHOR), Papantonopoulos, Eleftherios3 (AUTHOR), Vásquez, Yerko4 (AUTHOR) yvasquez@userena.cl
Publikováno v:
European Physical Journal C -- Particles & Fields. Mar2024, Vol. 84 Issue 3, p1-19. 19p.
Publikováno v:
Phys. Rev. D 103, 064006 (2021)
Recently, the anomalous decay rate of quasinormal modes has been studied for some geometries under scalar field perturbations, which occurs when the longest-lived modes are the ones with higher angular number, as well as, the existence of a critical
Externí odkaz:
http://arxiv.org/abs/2009.09436
We study the propagation of probe scalar fields in the background of 4D Einstein-Gauss-Bonnet black holes with anti-de Sitter (AdS) asymptotics and calculate the quasinormal modes. Mainly, we show that the quasinormal spectrum consists of two differe
Externí odkaz:
http://arxiv.org/abs/2004.05632
We consider a three-dimensional rotating Ho\v{r}ava AdS black hole, that corresponds to a Lorentz-violating version of the BTZ black hole and we analyze the effect of the breaking of Lorentz invariance on the possibility that the black hole can acts
Externí odkaz:
http://arxiv.org/abs/2002.04421
We compute the quasinormal modes (QNMs) of a massive scalar field in the background of a rotating three-dimensional Ho\v{r}ava AdS black hole, and we analyze the effect of the breaking of the Lorentz invariance on the QNMs. Imposing on the horizon th
Externí odkaz:
http://arxiv.org/abs/1906.06654