SHAHZADI, Misbah, Martin KOLOŠ, Zdeněk STUCHLÍK and Yousaf HABIB. Epicyclic oscillations in spinning particle motion around Kerr black hole applied in models fitting the quasi-periodic oscillations observed in microquasars and AGNs. European Physical Journal C. New York (USA): SPRINGER, 2021, vol. 81, No 12, p. "1067-1"-"1067-14", 14 pp. ISSN 1434-6044. Available from: https://dx.doi.org/10.1140/epjc/s10052-021-09868-1.
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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
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW 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, FÚ, GA19-03950S, RIV22
Tags International impact, Reviewed
Links GA19-03950S, research and development project.
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 7/2/2022 15:32.
Abstract
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.
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