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Scattering on Quasi-Spherical Black-Holes: Features and Beyond

Department of Physics and Technology, Karazin Kharkov National University, 4 Svobody Sq., UA 61022 Kharkov, Ukraine
Akhiezer Institute for Theoretical Physics of NSC KIPT, 1 Akademicheskaya St., UA 61108 Kharkov, Ukraine
Usikov Institute for Radiophysics and Electronics, 12 Proskura St., UA 61085 Kharkov, Ukraine
Author to whom correspondence should be addressed.
Received: 30 November 2020 / Revised: 9 January 2021 / Accepted: 22 January 2021 / Published: 28 January 2021
(This article belongs to the Special Issue Beyond the Standard Models of Physics and Cosmology)
Recent developments in the gravitational waves interferometry require more pertinent theoretical models of gravitational waves generation and propagation. Untouched possible mechanisms of spin-2 spacetime perturbations production, we will consider their subsequent scattering on other black holes (BHs). Specifically, we consider a generalization of the Regge-Wheeler-Zerilli equations for the case of distorted BHs (BHs surrounded with matter) in Minkowski and Anti-de Sitter spacetimes, the metric potential of which obeys the Liouville equation. We establish significant differences in scattering characteristics of waves of different spins and angular momenta, including the gravitational waves, caused by losing the spherical symmetry of their propagation background. In particular, we demonstrate the strong impact of the background geometry deformation on the grey-body factors, hence on the absorption cross-sections of scattering waves, and explore the issue of stability of the background geometry upon changing the deformation degree parameters. View Full-Text
Keywords: black holes; Regge-Wheeler-Zerilli equations; quasinormal modes; gravitational waves black holes; Regge-Wheeler-Zerilli equations; quasinormal modes; gravitational waves
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MDPI and ACS Style

Arslanaliev, A.M.; Nurmagambetov, A.J. Scattering on Quasi-Spherical Black-Holes: Features and Beyond. Physics 2021, 3, 17-41.

AMA Style

Arslanaliev AM, Nurmagambetov AJ. Scattering on Quasi-Spherical Black-Holes: Features and Beyond. Physics. 2021; 3(1):17-41.

Chicago/Turabian Style

Arslanaliev, Adam M., and Alexei J. Nurmagambetov 2021. "Scattering on Quasi-Spherical Black-Holes: Features and Beyond" Physics 3, no. 1: 17-41.

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