VRBA, Jaroslav and Zdeněk STUCHLÍK. Epicyclic Oscillations around Simpson--Visser Regular Black Holes and Wormholes. In RAGtime 23: 6-10 September, 2021 - Workshop on Black Holes and Neutron Stars. 2021.
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Basic information
Original name Epicyclic Oscillations around Simpson--Visser Regular Black Holes and Wormholes
Authors VRBA, Jaroslav and Zdeněk STUCHLÍK.
Edition RAGtime 23: 6-10 September, 2021 - Workshop on Black Holes and Neutron Stars, 2021.
Other information
Original language English
Type of outcome Presentations at conferences
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
WWW URL
Organization unit Institute of physics in Opava
Tags FÚ, FÚ2021, RAGtime 23
Tags International impact
Changed by Changed by: Ing. Petra Ryšavá, učo 5220. Changed: 14/11/2021 20:49.
Abstract
We study epicyclic oscillatory motion along circular geodesics of the Simpson--Visser meta-geometry describing in a unique way regular black-bounce black holes and reflection-symmetric wormholes by using a length parameter l. We give the frequencies of the orbital and epicyclic motion in a Keplerian disc with inner edge at the innermost circular geodesic located above the black hole outer horizon or on the our side of the wormhole. We use these frequencies in the epicyclic resonance version of the so-called geodesic models of high-frequency quasi-periodic oscillations (HF QPOs) observed in microquasars and around supermassive black holes in active galactic nuclei to test the ability of this meta-geometry to improve the fitting of HF QPOs observational data from the surrounding of supermassive black holes. We demonstrate that this is really possible for wormholes with sufficiently high length parameter l.
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