Ringing Regularity: Gravitational Perturbations and Quasinormal Modes of Einasto-Supported Black Holes
arXiv:2602.20601 · doi:10.1016/j.aop.2026.170664
Abstract
We investigate axial gravitational perturbations and quasinormal modes of regular black holes supported by an Einasto distribution of matter. Halo matter not only removes the central singularity but also modifies the quasinormal spectrum. We show that the resulting quasinormal spectrum deviates systematically from the Schwarzschild case, with shifts in both oscillation frequencies and damping rates that grow with the halo scale parameter and the Einasto index. In near-extremal configurations, the damping rate can be significantly suppressed, leading to long-lived modes. The effects of regularity and environmental factors on the spectrum are found to be substantially larger than the estimated numerical uncertainty, as confirmed independently by high-order WKB calculations with Padé resummation and time-domain integration.
12 pages, 2 figures, 8 tables
References in corpus (84)
- A Universal Density Profile from Hierarchical Clustering
- Particle Dark Matter: Evidence, Candidates and Constraints
- Quasi-Normal Modes of Stars and Black Holes
- The Aquarius Project: the subhalos of galactic halos
- Quasinormal modes of black holes: from astrophysics to string theory
- Formation and evaporation of non-singular black holes
- Regular Black Hole in General Relativity Coupled to Nonlinear Electrodynamics
- The Inner Structure of LambdaCDM Halos III: Universality and Asymptotic Slopes
- Regular Magnetic Black Holes and Monopoles from Nonlinear Electrodynamics
- Analytical Models For Galactic Nuclei
- Empirical models for Dark Matter Halos. I. Nonparametric Construction of Density Profiles and Comparison with Parametric Models
- Regular phantom black holes
- Black-bounce to traversable wormhole
- Quasinormal modes of black holes. The improved semianalytic approach
- Black holes in galaxies: environmental impact on gravitational-wave generation and propagation
- New black holes in the brane-world?
- Quasinormal modes of regular black holes
- Regular black holes and black universes
- Regular black holes: A short topic review
- Quasinormal Modes of Bardeen Black Hole: Scalar Perturbations
- On Quantum Deformation of the Schwarzschild Solution
- Analytical properties of Einasto dark matter haloes
- Quasinormal modes, quasiperiodic oscillations and shadow of rotating regular black holes in non-minimally coupled Einstein-Yang-Mills theory
- Rotating Black Hole Shadow in Perfect Fluid Dark Matter
- Solutions of the Einstein equations for a black hole surrounded by a galactic halo
- On a general class of brane-world black holes
- Quasinormal modes of test fields around regular black holes
- Quasinormal modes and a new instability of Einstein-Gauss-Bonnet black holes in the de Sitter world
- Scalar field evolution in Gauss-Bonnet black holes
- Evolution of perturbations of squashed Kaluza-Klein black holes: escape from instability
- Quasinormal ringing of regular black holes in asymptotically safe gravity: the importance of overtones
- Black holes surrounded by generic dark matter profiles: appearance and gravitational-wave emission
- Stability of multidimensional black holes: complete numerical analysis
- Holographic conductivity of zero temperature superconductors
- Gravitational spectrum of black holes in the Einstein-Aether theory
- Correspondence between grey-body factors and quasinormal modes
- Gravitational stability of simply rotating Myers-Perry black holes: tensorial perturbations
- Black holes in galactic centers: quasinormal ringing, grey-body factors and Unruh temperature
- Relaxations of perturbations of spacetimes in general relativity coupled to nonlinear electrodynamics
- Quasinormal modes of black holes. II. Padé summation of the higher-order WKB terms
- The Density and Pseudo-Phase-Space Density Profiles of CDM halos
- Quasi-Normal Modes of Brane-Localised Standard Model Fields II: Kerr Black Holes
- Shadows of black holes with dark matter halo
- Long-lived quasinormal modes and overtones' behavior of the holonomy corrected black holes
- Greybody factor and quasinormal modes of Regular Black Holes
- Correspondence between grey-body factors and quasinormal frequencies for rotating black holes
- Black holes in Starobinsky-Bel-Robinson Gravity and the breakdown of quasinormal modes/null geodesics correspondence
- Late time decay of scalar and Dirac fields around an asymptotically de Sitter black hole in the Euler-Heisenberg electrodynamics
- Dark-Matter Halo Profiles of a General Cusp/Core with Analytic Velocity and Potential
- Quasinormal modes and gray-body factors of regular black holes in asymptotically safe gravity
- Quasinormal modes-shadow correspondence for rotating regular black holes
- Quasinormal modes of black holes embedded in halos of matter
- Correspondence between quasinormal modes and grey-body factors of spherically symmetric traversable wormholes
- Correspondence between quasinormal modes and grey-body factors for massive fields in Schwarzschild-de Sitter spacetime
- Long-lived Quasinormal Modes and Gray-Body Factors of black holes and wormholes in dark matter inspired Weyl Gravity
- Optical appearance of black holes surrounded by a dark matter halo
- From regular black holes to horizonless objects: quasi-normal modes, instabilities and spectroscopy
- Quasinormal Ringing and Shadows of Black Holes and Wormholes in Dark Matter-Inspired Weyl Gravity
- Analytical QNMs of fields of various spin in the Hayward spacetime
- Superradiance of charged black holes embedded in dark matter halos
- Long Lived Quasinormal Modes of Regular and Extreme Black Holes
- Stability of asymptotically flat (2+1)-dimensional black holes with Gauss-Bonnet corrections
- Spacetime metrics and ringdown waveforms for galactic black holes surrounded by a dark matter spike
- Overtones of black holes via time-domain integration
- Motion of spinning particles around black hole in a dark matter halo
- Long-lived quasinormal modes, grey-body factors and absorption cross-section of the black hole immersed in the Hernquist galactic halo
- Anisotropic Generalized Polytropic Spheres: Regular 3D Black Holes
- Regular Black Holes from Proper-Time flow in Quantum Gravity and their Quasinormal modes, Shadow and Hawking radiation
- Probing black holes in a dark matter spike of M87 using quasinormal modes
- Proper-Time Approach in Asymptotic Safety via Black Hole Quasinormal Modes and Grey-body Factors
- Long-Lived Quasinormal Modes and Quasi-Resonances around Non-Minimal Einstein-Yang-Mills Black Holes
- Spinning black holes in astrophysical environments
- Quantum gravitational corrections to the Schwarzschild spacetime and quasinormal frequencies
- Galactic black hole immersed in a dark halo with its surrounding thin accretion disk
- Gravitational Spectra and Wave Propagation in Regular Black Holes Supported by a Dehnen Halo
- Long-lived quasinormal modes, shadows and particle motion in four-dimensional quasi-topological gravity
- Overtones behavior of higher dimensional black holes in the Einstein-Gauss-Bonnet gravity
- Grey-body factors and absorption cross-sections of scalar and Dirac fields in the vicinity of dilaton-de Sitter black hole
- Gravitational quasinormal modes of Dymnikova black holes
- Grey-body factors of higher dimensional regular black holes in quasi-topological theories
- Long-lived modes and grey-body factors of massive fields in quantum-corrected (Hayward) black holes
- Scalar Quasinormal Modes of Rotating Regular Black Holes
- Effect of generic dark matter halo on transonic accretion onto galactic black holes
- Two types of quasinormal modes of Casadio-Fabbri-Mazzacurati brane-world black holes