J 2021

Epicyclic oscillations in spinning particle motion around Kerr black hole applied in models fitting the quasi-periodic oscillations observed in microquasars and AGNs

SHAHZADI, Misbah, Martin KOLOŠ, Zdeněk STUCHLÍK and Yousaf HABIB

Basic information

Original name

Epicyclic oscillations in spinning particle motion around Kerr black hole applied in models fitting the quasi-periodic oscillations observed in microquasars and AGNs

Authors

SHAHZADI, Misbah, Martin KOLOŠ (203 Czech Republic, belonging to the institution), Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution) and Yousaf HABIB

Edition

European Physical Journal C, New York (USA), SPRINGER, 2021, 1434-6044

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

RIV identification code

RIV/47813059:19630/21:A0000110

Organization unit

Institute of physics in Opava

DOI

http://dx.doi.org/10.1140/epjc/s10052-021-09868-1

UT WoS

000726095200003

Keywords in English

X-RAY BINARIES;GENERAL-RELATIVITY;EXTENDED BODIES;MASS;DYNAMICS;FIELD;QPOS;EQUATIONS

Tags

2022, , GA19-03950S, RIV22

Tags

International impact, Reviewed

Links

GA19-03950S, research and development project.
Změněno: 7/2/2022 15:32, Mgr. Pavlína Jalůvková

Abstract

V originále

The study of the quasi-periodic oscillations (QPOs) of X-ray flux observed in the stellar-mass black hole (BH) binaries or quasars can provide a powerful tool for testing the phenomena occurring in strong gravity regime. We thus fit the data of QPOs observed in the well known microquasars as well as active galactic nuclei (AGNs) in the framework of the model of geodesic oscillations of Keplerian disks modified for the epicyclic oscillations of spinning test particles orbiting Kerr BHs. We show that the modified geodesic models of QPOs can explain the observational fixed data from the microquasars and AGNs but not for all sources. We perform a successful fitting of the high frequency QPOs models of epicyclic resonance and its variants, relativistic precession and its variants, tidal disruption, as well as warped disc models, and discuss the corresponding constraints of parameters of the model, which are the spin of the test particle, mass and rotation of the BH.
Displayed: 25/12/2024 19:56