中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 国家天文台
  3. 中国科学院国家天文台
Two-dimensional Inflow-Outflow Solution of Supercritical Accretion Flow

文献类型：期刊论文

作者Zeraatgari, Fatemeh Zahra2; Mosallanezhad, Amin1; Yuan, Ye-Fei1; Bu, De-Fu3; Mei, Liquan2
刊名ASTROPHYSICAL JOURNAL
出版日期2020-01-10
卷号888期号:2页码:10
关键词High energy astrophysics Active galactic nuclei black hole physics Black holes Seyfert galaxies
ISSN号0004-637X
DOI10.3847/1538-4357/ab594f
英文摘要We present the two-dimensional inflow-outflow solutions of radiation hydrodynamic equations of supercritical accretion flows. Compared with prior studies, we include all components of the viscous stress tensor. We assume steady-state flow and use self-similar solutions in the radial direction to solve the equations in the r-rho(r) proportional to r(-0.5). Correspondingly, the radial profile of the mass inflow rate decreases with decreasing radius as > 65 degrees, while above that the flow moves outward and outflow could launch. The driving forces of the outflow are analyzed and it is found that the radiation force is dominant and pushes the gas particles outward with poloidal velocity similar to 0.25c. The properties of the outflow are also studied. The results show that the mass flux-weighted angular momentum of the inflow is lower than that of the outflow, thus the angular momentum of the flow can be transported by the outflow. We also analyze the convective stability of the supercritical disk and find that in the absence of a magnetic field, the flow is convectively unstable. Our analytical results are fully consistent with the previous numerical simulations of supercritical accretion flow.
WOS关键词BLACK-HOLE ACCRETION ; ADVECTION-DOMINATED ACCRETION ; RADIATION-HYDRODYNAMIC CALCULATION ; SUPER-EDDINGTON ACCRETION ; SLIM-DISK MODEL ; X-RAY SOURCES ; SIMULATIONS ; PULSAR ; BEHAVIOR
资助项目Chinese Academy of Sciences President's International Fellowship Initiative (PIFI)[2018PM0046] ; National Natural Science Foundation of China[11725312] ; National Natural Science Foundation of China[11421303] ; Science Challenge Project of China[TZ2016002] ; China Postdoctoral Science Foundation[2019M663665]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000520526000001
出版者IOP PUBLISHING LTD
资助机构Chinese Academy of Sciences President's International Fellowship Initiative (PIFI) ; Chinese Academy of Sciences President's International Fellowship Initiative (PIFI) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science Challenge Project of China ; Science Challenge Project of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Chinese Academy of Sciences President's International Fellowship Initiative (PIFI) ; Chinese Academy of Sciences President's International Fellowship Initiative (PIFI) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science Challenge Project of China ; Science Challenge Project of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Chinese Academy of Sciences President's International Fellowship Initiative (PIFI) ; Chinese Academy of Sciences President's International Fellowship Initiative (PIFI) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science Challenge Project of China ; Science Challenge Project of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Chinese Academy of Sciences President's International Fellowship Initiative (PIFI) ; Chinese Academy of Sciences President's International Fellowship Initiative (PIFI) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science Challenge Project of China ; Science Challenge Project of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
源URL[http://ir.bao.ac.cn/handle/114a11/56386]  
专题中国科学院国家天文台
通讯作者Mosallanezhad, Amin
作者单位1.Univ Sci & Technol China, Dept Astron, Key Lab Res Galaxies & Cosmol, Hefei 230026, Anhui, Peoples R China
2.Xi An Jiao Tong Univ, Sch Math & Stat, Xian 710049, Shaanxi, Peoples R China
3.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, 80 Nandan Rd, Shanghai 200030, Peoples R China
推荐引用方式
GB/T 7714		 Zeraatgari, Fatemeh Zahra,Mosallanezhad, Amin,Yuan, Ye-Fei,et al. Two-dimensional Inflow-Outflow Solution of Supercritical Accretion Flow[J]. ASTROPHYSICAL JOURNAL,2020,888(2):10.
APA Zeraatgari, Fatemeh Zahra,Mosallanezhad, Amin,Yuan, Ye-Fei,Bu, De-Fu,&Mei, Liquan.(2020).Two-dimensional Inflow-Outflow Solution of Supercritical Accretion Flow.ASTROPHYSICAL JOURNAL,888(2),10.
MLA Zeraatgari, Fatemeh Zahra,et al."Two-dimensional Inflow-Outflow Solution of Supercritical Accretion Flow".ASTROPHYSICAL JOURNAL 888.2(2020):10.

入库方式： OAI收割

来源：国家天文台

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。