Test particles and quasiperiodic oscillations around Kiselev black hole with cloud of strings

作     者：Javlon Rayimbaev Uktambek Eshimbetov Bushra Majeed Ahmadjon Abdujabbarov Alisher Abduvokhidov Bakhrom Abdulazizov Akram Xalmirzayev Javlon Rayimbaev;Uktambek Eshimbetov;Bushra Majeed;Ahmadjon Abdujabbarov;Alisher Abduvokhidov;Bakhrom Abdulazizov;Akram Xalmirzayev

作者机构：School of Mathematics and Natural SciencesNew Uzbekistan UniversityMovarounnahr Str.1Tashkent 100000Uzbekistan School of EngineeringCentral Asian UniversityTashkent 111221Uzbekistan University of Tashkent for Applied SciencesStr.Gavhar 1Tashkent 100149Uzbekistan Institute of Fundamental and Applied ResearchNational Research University TIIAMEKori Niyoziy 39Tashkent 100000Uzbekistan National University of UzbekistanTashkent 100174Uzbekistan Ulugh Beg Astronomical InstituteAstronomy Str.33Tashkent 100052Uzbekistan Tashkent State Technical UniversityTashkent 100095Uzbekistan College of Electrical and Mechanical Engineering(CEME)National University of Sciences and TechnologyRawalpindiPakistan Andijan State UniversityUniversitet Str.129Andijan 170100Uzbekistan Namangan State UniversityBoburshoh Str.161Namangan 160107Uzbekistan 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2024年第48卷第5期

页      面：293-308页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：Supported by the F-FA-2021-510 Grant of the Ministry of Innovative Development of Uzbekistan 

主　　题：quintessential field black holes string cloud quasiperiodic oscillations 

摘      要：In the present study,we investigate the dynamics of test particles around a Schwarzschild black hole surrounded by quintessence and immersed in a scalar string cloud *** start our study by defining the possible values of the quintessence and cloud of string parameters corresponding to the existence of the black hole horizon for fixed values of the parameters of the equation of state for dark *** also study the effects of the effective potential on the circular motion,energy,and angular momentum of the test particles together with the innermost stable circular orbits(ISCOs).We investigate the fundamental frequencies in the particle oscillations along stable circular *** relate the stability of the orbits to the Lyapunov exponent,and the chaotic behavior is studied ***,we apply the fundamental frequencies to describe quasiperiodic oscillations(QPOs)and find that,in the presence of both fields,low-frequency twin-peak QPOs are not *** addition,we obtain the constraint values for the string cloud parameter and mass of the black hole candidates located in the center of the microquasars GRO J1655-40 and GRS 1915+105 as well as the Milky Way galaxy.