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42 papers · 1 filter
Quasinormal-mode analysis of a massive scalar field in a Schwarzschild background via the spectral method
Davide Batic, Anna Chrysostomou, Alan S. Cornell +1
We study the massive scalar quasinormal-mode spectral problem on a Schwarzschild background using an extended Chebyshev spectral method. The massive dispersion relation has a two-s…
Quasinormal modes of Hayward black holes from Schwarzschild to extremality: a comparative spectral analysis
Davide Batic, Denys Dutykh
We study scalar and electromagnetic quasinormal modes of the Hayward black hole and the axial spectrum of a specified Regge--Wheeler-type effective model, from the Schwarzschild li…
An exact Kerr-like rotating Morris--Thorne wormhole: throat, ergoregion and equatorial shadow slice
Mark Sukaiti, Davide Batic, Denys Dutykh
We construct an exact Kerr-like rotating extension of the zero-redshift Morris--Thorne wormhole in a Teo-type stationary, axisymmetric ansatz. The Einstein equations for an anisotr…
Quasinormal Modes of Gauss--Bonnet Black Holes via the Spectral Method: Scalar, Vector, and Tensor Perturbations
Davide Batic, Denys Dutykh
We present a unified study of scalar, vector, and tensor quasinormal modes (QNMs) of Schwarzschild black holes corrected by a Gauss--Bonnet (GB) term in higher dimensions. Using a…
Quasinormal modes of the Kazakov--Solodukhin quantum-corrected black hole: a spectral analysis
Davide Batic, Denys Dutykh, Mark Sukaiti
We compute quasinormal modes of the Kazakov--Solodukhin quantum-corrected black hole using a high-precision Chebyshev spectral method. After factoring out the quasinormal mode asym…
Quasinormal modes of Bonanno-Reuter black holes via the Spectral Method
Davide Batic, Denys Dutykh, Fabio Scardigli
In this work, we explore the quasinormal modes (QNMs) of the Bonanno-Reuter black hole, one of the first regular black hole metric suggested by the Asymptotically Safe Gravity (ASG…