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The Quasinormal modes (QNMs) for gravitational and electromagnetic perturbations are calculated in a Scalar-Tensor-Vector (Modified Gravity) spacetime, which was initially proposed to obtain correct dynamics of galaxies and galaxy clusters…

广义相对论与量子宇宙学 · 物理学 2018-04-18 Luciano Manfredi , Jonas Mureika , John Moffat

We derive novel black hole solutions in a modified gravity theory, namely the Hu-Sawicki model of $f(R)$ gravity. After obtaining the black hole solution, we study the horizon radius of the black hole from the metric and then analyse the…

广义相对论与量子宇宙学 · 物理学 2024-10-04 Ronit Karmakar , Umananda Dev Goswami

We compute the exact gravitational quasinormal frequencies for massless topological black holes in d-dimensional anti-de Sitter space. Using the gauge invariant formalism for gravitational perturbations derived by Kodama and Ishibashi, we…

高能物理 - 理论 · 物理学 2008-11-26 Danny Birmingham , Susan Mokhtari

We consider a static and spherically symmetric black hole metric that emerges from the vacuum solution of the traceless metric-affine bumblebee model. Our study focuses on the possible implications of the modifications induced by the model…

广义相对论与量子宇宙学 · 物理学 2024-02-05 Sohan Kumar Jha , Anisur Rahaman

Quasinormal modes in the high frequency (eikonal) regime can be obtained analytically as the Mashhoon-Will-Schiutz WKB formula is exact in this case. This regime is interesting because of the correspondence between eikonal quasinormal modes…

广义相对论与量子宇宙学 · 物理学 2019-09-04 M. S. Churilova

The quasinormal modes for a scalar field in the background spacetime corresponding to a black hole, with a cloud of strings, in Einstein-Gauss-Bonnet gravity, and the tensor quasinormal modes corresponding to perturbations in such…

广义相对论与量子宇宙学 · 物理学 2023-02-22 J. P. Morais Graça , Godonou I. Salako , V. B. Bezerra

Asymptotically safe gravity is based on the idea that the main contribution to the Schwarzschild-like black hole spacetime is due to the value of the gravitational coupling which depends on the distance from the origin and approaches its…

广义相对论与量子宇宙学 · 物理学 2022-11-01 R. A. Konoplya , A. F. Zinhailo , J. Kunz , Z. Stuchlik , A. Zhidenko

We examine the behavior of non-commutative Schwarzschild black holes in the context of massive gravity. According to the investigation, corresponding to a minimal mass, the black hole can have two horizons, one horizon, or no horizon at…

广义相对论与量子宇宙学 · 物理学 2024-04-17 Piyali Bhar , Dhruba Jyoti Gogoi , Supakchai Ponglertsakul

We investigate the quasinormal mode and greybody factor of Bardeen black holes with a string clouds by WKB approximation and verify them by Prony algorithm. We found that the imaginary part of the quasinormal modes spectra is always…

广义相对论与量子宇宙学 · 物理学 2023-11-09 Yunlong Liu , Xiangdong Zhang

We study the quasi-normal modes (QNMs) of a family of generalized black bounces interpolating between regular black holes and traversable wormhole solutions according to a single extra parameter $a$. Firstly, working with a generic…

广义相对论与量子宇宙学 · 物理学 2025-06-13 Albert Duran-Cabacés , Diego Rubiera-Garcia , Diego Sáez-Chillón Gómez

We have studied quasinormal modes of spinor $\frac{1}{2}$, massless Dirac field perturbations of a black hole in massive gravity. The parameters of the theory, such as the mass of the black hole, the scalar charge of the black hole, mode…

广义相对论与量子宇宙学 · 物理学 2015-09-23 Sharmanthie Fernando

Using the third-order WKB approximation, we evaluate the quasinormal frequencies of massless scalar field perturbation around the black hole which is surrounded by the static and spherically symmetric quintessence. Our result shows that due…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Songbai Chen , Jiliang Jing

This study provides an analytic and numerical characterization of a class of regular, asymptotically flat black holes described by a deformed static spherical metric. The model is grounded in a four-dimensional non-polynomial…

广义相对论与量子宇宙学 · 物理学 2026-03-26 Zainab Malik

We study the propagation of massive scalar fields in the background of asymptotically flat regular black holes supported by a phantom scalar field with a scalar charge $A$. This parameter regularizes the geometry by removing the central…

广义相对论与量子宇宙学 · 物理学 2026-04-20 Ramón Bécar , P. A. González , Eleftherios Papantonopoulos , Yerko Vásquez

Black holes have their proper oscillations, which are called the quasi-normal modes. The proper oscillations of astrophysical black holes can be observed in the nearest future with the help of gravitational wave detectors. Quasi-normal…

广义相对论与量子宇宙学 · 物理学 2009-05-26 Alexander Zhidenko

We compute quasinormal mode frequencies for static limits of physical black holes - semi-classical black hole solutions to Einstein-Hilbert gravity characterized by the finite formation time of an apparent horizon and its weak regularity.…

广义相对论与量子宇宙学 · 物理学 2024-11-11 Fil Simovic , Daniel R. Terno

The pure quadratic term of New Massive Gravity in three dimensions admits asymptotically locally flat, rotating black holes. These black holes are characterized by their mass and angular momentum, as well as by a hair of gravitational…

高能物理 - 理论 · 物理学 2019-05-01 Andres Anabalon , Octavio Fierro , Jose Figueroa , Julio Oliva

We study the quasi-normal modes (QNM) of scalar, electromagnetic and gravitational perturbations of black holes in general relativity whose horizons have toroidal, cylindrical or planar topology in an asymptotically anti-de Sitter (AdS)…

广义相对论与量子宇宙学 · 物理学 2009-11-07 Vitor Cardoso , Jose' P. S. Lemos

We investigate the interior structure, perturbations, and the associated quasinormal modes of a quantum black hole model recently proposed by Bodendorfer, Mele, and M\"unch (BMM). Within the framework of loop quantum gravity, the quantum…

广义相对论与量子宇宙学 · 物理学 2020-08-04 Mariam Bouhmadi-López , Suddhasattwa Brahma , Che-Yu Chen , Pisin Chen , Dong-han Yeom

We calculate gravitational perturbation quasinormal modes (QNMs) of non-singular Bardeen black holes (BHs) and singularity-free BHs in conformal gravity and examine their spectra in wave dynamics comparing with standard BHs in general…

广义相对论与量子宇宙学 · 物理学 2020-12-30 Hang Liu , Chao Zhang , Yungui Gong , Bin Wang , Anzhong Wang