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Test particle motion around a black hole in Einstein-Maxwell-scalar theory
Turimov, Bobur1,2; Rayimbaev, Javlon1,3; Abdujabbarov, Ahmadjon1,3,4,5; Ahmedov, Bobomurat1,3,5; Stuchlik, Zdenek2
2020-09-18
Source PublicationPHYSICAL REVIEW D
ISSN1550-7998
Volume102Issue:6Pages:14
AbstractIn this paper, we explore the test particle motion around black hole in Einstein-Maxwell-scalar (EMS) theory using three different black hole solutions within this theory. We have first analyzed the spacetime curvature structure of these solutions and shown the existence of two singularities and the first one is at the center r = 0. In black hole spacetime, there are two regions divided by the critical value of the cosmological parameter lambda(0). The photon sphere around black hole in EMS theory has also been studied and found that it does not depend on cosmological parameter lambda. We have analyzed the innermost stable circular orbits (ISCO) around black hole and shown that for all solutions ISCO radius for neutral particle decreases with the increase of black hole charge. We have also studied the charged particle motion around the black hole where charged particle motion is considered in the presence of gravitational field and the Coulomb potential. It is shown that ISCO radius for charged particles increases depending on the selected value of the coupling parameter which is in contradiction with observations of the inner edge of the accretion disks of the astrophysical black holes and can be used as powerful tool to rule out the EMS theory from consideration for the gravitational field theory. It also studied the fundamental frequencies governed by test particle orbiting around black hole in EMS theory. Finally, as test of black hole solution in EMS theory ISCO radii is compared with that in Kerr black hole and found that the spin parameter of Kerr can be mimic up to a/M similar or equal to 0.936.
Funding OrganizationUzbekistan Ministry for Innovative Development ; Uzbekistan Ministry for Innovative Development ; PIFI fund of Chinese Academy of Sciences ; PIFI fund of Chinese Academy of Sciences ; SU ; SU ; Uzbekistan Ministry for Innovative Development ; Uzbekistan Ministry for Innovative Development ; PIFI fund of Chinese Academy of Sciences ; PIFI fund of Chinese Academy of Sciences ; SU ; SU ; Uzbekistan Ministry for Innovative Development ; Uzbekistan Ministry for Innovative Development ; PIFI fund of Chinese Academy of Sciences ; PIFI fund of Chinese Academy of Sciences ; SU ; SU ; Uzbekistan Ministry for Innovative Development ; Uzbekistan Ministry for Innovative Development ; PIFI fund of Chinese Academy of Sciences ; PIFI fund of Chinese Academy of Sciences ; SU ; SU
DOI10.1103/PhysRevD.102.064052
WOS KeywordMAGNETIZED ORBITS ; FIELD-THEORIES ; SPACETIMES ; GRAVITY ; RESONANCE ; CONSTANT ; DYNAMICS ; ENERGY ; CHAOS ; SPIN
Language英语
Funding ProjectUzbekistan Ministry for Innovative Development[VA-FA-F-2-008] ; Uzbekistan Ministry for Innovative Development[MRB-AN-2019-29] ; PIFI fund of Chinese Academy of Sciences ; SU[SGS/12/2019]
Funding OrganizationUzbekistan Ministry for Innovative Development ; Uzbekistan Ministry for Innovative Development ; PIFI fund of Chinese Academy of Sciences ; PIFI fund of Chinese Academy of Sciences ; SU ; SU ; Uzbekistan Ministry for Innovative Development ; Uzbekistan Ministry for Innovative Development ; PIFI fund of Chinese Academy of Sciences ; PIFI fund of Chinese Academy of Sciences ; SU ; SU ; Uzbekistan Ministry for Innovative Development ; Uzbekistan Ministry for Innovative Development ; PIFI fund of Chinese Academy of Sciences ; PIFI fund of Chinese Academy of Sciences ; SU ; SU ; Uzbekistan Ministry for Innovative Development ; Uzbekistan Ministry for Innovative Development ; PIFI fund of Chinese Academy of Sciences ; PIFI fund of Chinese Academy of Sciences ; SU ; SU
WOS Research AreaAstronomy & Astrophysics ; Physics
WOS SubjectAstronomy & Astrophysics ; Physics, Particles & Fields
WOS IDWOS:000570979500003
PublisherAMER PHYSICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/81535
Collection中国科学院国家天文台
Corresponding AuthorTurimov, Bobur; Rayimbaev, Javlon; Abdujabbarov, Ahmadjon; Ahmedov, Bobomurat; Stuchlik, Zdenek
Affiliation1.Ulugh Beg Astron Inst, Astron Skaya 33, Tashkent 100052, Uzbekistan
2.Silesian Univ Opava, Res Ctr Theoret Phys & Astrophys, Inst Phys, Bezrucovo Nam 13, CZ-74601 Opava, Czech Republic
3.Natl Univ Uzbekistan, Tashkent 100174, Uzbekistan
4.Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
5.Tashkent Inst Irrigat & Agr Mechanizat Engineers, Kori Niyoziy 39, Tashkent 100000, Uzbekistan
Recommended Citation
GB/T 7714
Turimov, Bobur,Rayimbaev, Javlon,Abdujabbarov, Ahmadjon,et al. Test particle motion around a black hole in Einstein-Maxwell-scalar theory[J]. PHYSICAL REVIEW D,2020,102(6):14.
APA Turimov, Bobur,Rayimbaev, Javlon,Abdujabbarov, Ahmadjon,Ahmedov, Bobomurat,&Stuchlik, Zdenek.(2020).Test particle motion around a black hole in Einstein-Maxwell-scalar theory.PHYSICAL REVIEW D,102(6),14.
MLA Turimov, Bobur,et al."Test particle motion around a black hole in Einstein-Maxwell-scalar theory".PHYSICAL REVIEW D 102.6(2020):14.
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