J
2021
Epicyclic Oscillations around Simpson-Visser Regular Black Holes and Wormholes
STUCHLÍK, Zdeněk and Jaroslav VRBA
Basic information
Original name
Epicyclic Oscillations around Simpson-Visser Regular Black Holes and Wormholes
Edition
Universe, Switzerland, 2021, 2218-1997
Other information
Type of outcome
Článek v odborném periodiku
Field of Study
10308 Astronomy
Country of publisher
Switzerland
Confidentiality degree
není předmětem státního či obchodního tajemství
RIV identification code
RIV/47813059:19630/21:A0000115
Organization unit
Institute of physics in Opava
Keywords in English
wormhole; quasi-periodic oscillation; supermassive quasars
Tags
International impact, Reviewed
Links
GA19-03950S, research and development project.
V originále
We study epicyclic oscillatory motion along circular geodesics of the Simpson-Visser metageometry 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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