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 HABIBBasic 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
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
		References:
Impact factor
Impact factor: 4.994
			RIV identification code
RIV/47813059:19630/21:A0000110
		Organization unit
Institute of physics in Opava
			UT WoS
000726095200003
		EID Scopus
2-s2.0-85120734363
		Keywords in English
X-RAY BINARIES;GENERAL-RELATIVITY;EXTENDED BODIES;MASS;DYNAMICS;FIELD;QPOS;EQUATIONS
		Tags
Tags
International impact, Reviewed
		Links
GA19-03950S, research and development project. 
			
				
				Changed: 7/2/2022 15:32, Mgr. Pavlína Jalůvková
				
		Abstract
In the original language
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.