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Can the dynamics of test particles around charged stringy black holes mimic the spin of Kerr black holes?
Narzilloev, Bakhtiyor1,2; Rayimbaev, Javlon3,4; Shaymatov, Sanjar3,4,5,6; Abdujabbarov, Ahmadjon3,4,6,7; Ahmedov, Bobomurat3,4,6; Bambi, Cosimo1,2
2020-08-06
Source PublicationPHYSICAL REVIEW D
ISSN1550-7998
Volume102Issue:4Pages:17
AbstractWe study the motion of electrically charged particles, magnetic monopoles, and magnetic dipoles around electrically and magnetically charged stringy black holes. From the analysis of the radius of the innermost stable circular orbit of electrically charged particles, we show that the electric charge Q of stringy black holes can mimic well the spin of Kerr black holes; the black hole magnetic charge Q(m) can mimic spins up to a(*) similar or equal to 0.85 for magnetic dipoles; the magnetic charge parameter g of a magnetic monopole can mimic spins up to a(*) similar or equal to 0.8. This is due to the destructive character of the magnetic field, and such a result excludes the existence of an appreciable black hole magnetic charge in astrophysical black holes from the observation of rapidly rotating objects with dimensionless spin up to a(*) similar or equal to 0.99. We then consider the magnetar SGR (PSR) J1745-2900 as a magnetic dipole orbiting the supermassive black hole Sagittarius A* (Sgr A*). We show that Sgr A* may be interpreted as a stringy black hole with magnetic charge Q(m)/M <= 0.4118.
Funding OrganizationUzbekistan Ministry for Innovative Development ; Uzbekistan Ministry for Innovative Development ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Innovation Program of the Shanghai Municipal Education Commission ; Innovation Program of the Shanghai Municipal Education Commission ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Uzbekistan Ministry for Innovative Development ; Uzbekistan Ministry for Innovative Development ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Innovation Program of the Shanghai Municipal Education Commission ; Innovation Program of the Shanghai Municipal Education Commission ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Uzbekistan Ministry for Innovative Development ; Uzbekistan Ministry for Innovative Development ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Innovation Program of the Shanghai Municipal Education Commission ; Innovation Program of the Shanghai Municipal Education Commission ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Uzbekistan Ministry for Innovative Development ; Uzbekistan Ministry for Innovative Development ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Innovation Program of the Shanghai Municipal Education Commission ; Innovation Program of the Shanghai Municipal Education Commission ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC)
DOI10.1103/PhysRevD.102.044013
WOS KeywordMAGNETIZED ORBITS ; HAWKING RADIATION ; MOTION ; ENTROPY ; CHAOS
Language英语
Funding ProjectUzbekistan Ministry for Innovative Development[VA-FA-F-2008] ; Uzbekistan Ministry for Innovative Development[MRB-AN-2019-29] ; China Scholarship Council (CSC)[2018DFH009013] ; Innovation Program of the Shanghai Municipal Education Commission[2019-01-07-00-07E00035] ; National Natural Science Foundation of China (NSFC)[11973019]
Funding OrganizationUzbekistan Ministry for Innovative Development ; Uzbekistan Ministry for Innovative Development ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Innovation Program of the Shanghai Municipal Education Commission ; Innovation Program of the Shanghai Municipal Education Commission ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Uzbekistan Ministry for Innovative Development ; Uzbekistan Ministry for Innovative Development ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Innovation Program of the Shanghai Municipal Education Commission ; Innovation Program of the Shanghai Municipal Education Commission ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Uzbekistan Ministry for Innovative Development ; Uzbekistan Ministry for Innovative Development ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Innovation Program of the Shanghai Municipal Education Commission ; Innovation Program of the Shanghai Municipal Education Commission ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Uzbekistan Ministry for Innovative Development ; Uzbekistan Ministry for Innovative Development ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Innovation Program of the Shanghai Municipal Education Commission ; Innovation Program of the Shanghai Municipal Education Commission ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC)
WOS Research AreaAstronomy & Astrophysics ; Physics
WOS SubjectAstronomy & Astrophysics ; Physics, Particles & Fields
WOS IDWOS:000556231900006
PublisherAMER PHYSICAL SOC
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Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/82479
Collection中国科学院国家天文台
Corresponding AuthorBambi, Cosimo
Affiliation1.Fudan Univ, Ctr Field Theory & Particle Phys, Shanghai 200438, Peoples R China
2.Fudan Univ, Dept Phys, Shanghai 200438, Peoples R China
3.Ulugh Beg Astron Inst, Astron Skaya 33, Tashkent 100052, Uzbekistan
4.Natl Univ Uzbekistan, Tashkent 100174, Uzbekistan
5.Zheijiang Univ Technol, Inst Theoret Phys & Cosmol, Hangzhou 310023, Peoples R China
6.Tashkent Inst Irrigat & Agr Mechanizat Engineers, Kori Niyoziy 39, Tashkent 100000, Uzbekistan
7.Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Recommended Citation
GB/T 7714
Narzilloev, Bakhtiyor,Rayimbaev, Javlon,Shaymatov, Sanjar,et al. Can the dynamics of test particles around charged stringy black holes mimic the spin of Kerr black holes?[J]. PHYSICAL REVIEW D,2020,102(4):17.
APA Narzilloev, Bakhtiyor,Rayimbaev, Javlon,Shaymatov, Sanjar,Abdujabbarov, Ahmadjon,Ahmedov, Bobomurat,&Bambi, Cosimo.(2020).Can the dynamics of test particles around charged stringy black holes mimic the spin of Kerr black holes?.PHYSICAL REVIEW D,102(4),17.
MLA Narzilloev, Bakhtiyor,et al."Can the dynamics of test particles around charged stringy black holes mimic the spin of Kerr black holes?".PHYSICAL REVIEW D 102.4(2020):17.
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