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

Authors

STUCHLÍK, Zdeněk (203 Czech Republic, belonging to the institution) and Jaroslav VRBA (203 Czech Republic, belonging to the institution)

Edition

Universe, Switzerland, 2021, 2218-1997

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

Switzerland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

RIV identification code

RIV/47813059:19630/21:A0000115

Organization unit

Institute of physics in Opava

UT WoS

000690006700001

Keywords in English

wormhole; quasi-periodic oscillation; supermassive quasars

Tags

International impact, Reviewed

Links

GA19-03950S, research and development project.
Změněno: 15/3/2022 12:25, Mgr. Pavlína Jalůvková

Abstract

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.