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Large-scale Dynamics of Winds Originating from Black Hole Accretion Flows. II. Magnetohydrodynamics
Cui, Can1,2; Yuan, Feng1,2
2020-02-10
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume890Issue:1Pages:14
AbstractThe great difference in dynamical range between small-scale accretion disk simulations and large-scale or cosmological simulations creates difficulties in tracking the disk wind kinematics. In the first paper of this series, we studied the dynamics of hydrodynamic winds from the outer edge of the accretion disk toward galactic scales. In this paper, we further incorporate magnetic fields by employing a one-dimensional magnetohydrodynamic model, with fiducial boundary conditions set for hot accretion flows. The wind solution is achieved through requiring gas to pass smoothly through the slow, Alfven, and fast magnetosonic points. Beyond the fast magnetosonic point, physical quantities are found to show power-law dependences with cylindrical radius R, i.e., rho proportional to R-2, v(p) proportional to const., v(phi) proportional to R-1, B-phi proportional to R-1, and beta proportional to rho(gamma-1). The magnetization of wind is dominant in determining the wind properties. The wind is accelerated to greater terminal velocities with stronger magnetizations. The fiducial parameters result in a terminal velocity of about 0.016c. The dependence of the wind physical quantities on temperature, field line angular velocity, and adiabatic index is also discussed.
Funding OrganizationNational Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key Research Program of Frontier Sciences of CAS ; Key Research Program of Frontier Sciences of CAS ; Astronomical Big Data Joint Research Center ; Astronomical Big Data Joint Research Center ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key Research Program of Frontier Sciences of CAS ; Key Research Program of Frontier Sciences of CAS ; Astronomical Big Data Joint Research Center ; Astronomical Big Data Joint Research Center ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key Research Program of Frontier Sciences of CAS ; Key Research Program of Frontier Sciences of CAS ; Astronomical Big Data Joint Research Center ; Astronomical Big Data Joint Research Center ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key Research Program of Frontier Sciences of CAS ; Key Research Program of Frontier Sciences of CAS ; Astronomical Big Data Joint Research Center ; Astronomical Big Data Joint Research Center
DOI10.3847/1538-4357/ab6e6f
WOS KeywordMAGNETICALLY-DRIVEN JETS ; ADVECTION-DOMINATED ACCRETION ; ACTIVE GALACTIC NUCLEI ; DISK WINDS ; NUMERICAL SIMULATIONS ; ASTROPHYSICAL JETS ; MAGNETOCENTRIFUGAL WINDS ; KEPLERIAN DISKS ; MHD SIMULATIONS ; ACCELERATION
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFA0400704] ; Natural Science Foundation of China[11573051] ; Natural Science Foundation of China[11633006] ; Natural Science Foundation of China[11650110427] ; Natural Science Foundation of China[11661161012] ; Key Research Program of Frontier Sciences of CAS[QYZDJSSW-SYS008] ; Astronomical Big Data Joint Research Center
Funding OrganizationNational Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key Research Program of Frontier Sciences of CAS ; Key Research Program of Frontier Sciences of CAS ; Astronomical Big Data Joint Research Center ; Astronomical Big Data Joint Research Center ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key Research Program of Frontier Sciences of CAS ; Key Research Program of Frontier Sciences of CAS ; Astronomical Big Data Joint Research Center ; Astronomical Big Data Joint Research Center ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key Research Program of Frontier Sciences of CAS ; Key Research Program of Frontier Sciences of CAS ; Astronomical Big Data Joint Research Center ; Astronomical Big Data Joint Research Center ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key Research Program of Frontier Sciences of CAS ; Key Research Program of Frontier Sciences of CAS ; Astronomical Big Data Joint Research Center ; Astronomical Big Data Joint Research Center
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000522096700013
PublisherIOP PUBLISHING LTD
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Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/55340
Collection中国科学院国家天文台
Corresponding AuthorCui, Can
Affiliation1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Cui, Can,Yuan, Feng. Large-scale Dynamics of Winds Originating from Black Hole Accretion Flows. II. Magnetohydrodynamics[J]. ASTROPHYSICAL JOURNAL,2020,890(1):14.
APA Cui, Can,&Yuan, Feng.(2020).Large-scale Dynamics of Winds Originating from Black Hole Accretion Flows. II. Magnetohydrodynamics.ASTROPHYSICAL JOURNAL,890(1),14.
MLA Cui, Can,et al."Large-scale Dynamics of Winds Originating from Black Hole Accretion Flows. II. Magnetohydrodynamics".ASTROPHYSICAL JOURNAL 890.1(2020):14.
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