Self-similar solution of hot accretion flows with ordered magnetic field and outflow
文献类型：期刊论文
| 作者 | Bu, De-Fu1,2; Yuan, Feng1 ; Xie, Fu-Guo1,2
|
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2009 |
| 卷号 | 392期号:1页码:325-331 |
| 关键词 | accretion black hole physics MHD ISM: jets and outflow accretion discs |
| 英文摘要 | Observations and numerical magnetohydrodynamic (MHD) simulations indicate the existence of outflows and ordered large-scale magnetic fields in the inner region of hot accretion flows. In this paper, we present the self-similar solutions for advection-dominated accretion flows (ADAFs) with outflows and ordered magnetic fields. Stimulated by numerical simulations, we assume that the magnetic field has a strong toroidal component and a vertical component in addition to a stochastic component. We obtain the self-similar solutions to the equations describing the magnetized ADAFs, taking into account the dynamical effects of the outflow. We compare the results with the canonical ADAFs and find that the dynamical properties of ADAFs such as radial velocity, angular velocity and temperature can be significantly changed in the presence of ordered magnetic fields and outflows. The stronger the magnetic field is, the lower the temperature of the accretion flow will be and the faster the flow rotates. The relevance to observations is briefly discussed. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | ADVECTION-DOMINATED ACCRETION ; ACTIVE GALACTIC NUCLEI ; BLACK-HOLE ; 2 DIMENSIONS ; DISKS ; INSTABILITY ; CONVECTION ; MODELS ; SIMULATIONS ; TURBULENCE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000262302700023 |
| 源URL | [http://119.78.226.72/handle/331011/19549]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bu, De-Fu,Yuan, Feng,Xie, Fu-Guo. Self-similar solution of hot accretion flows with ordered magnetic field and outflow[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2009,392(1):325-331. |
| APA | Bu, De-Fu,Yuan, Feng,&Xie, Fu-Guo.(2009).Self-similar solution of hot accretion flows with ordered magnetic field and outflow.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,392(1),325-331. |
| MLA | Bu, De-Fu,et al."Self-similar solution of hot accretion flows with ordered magnetic field and outflow".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 392.1(2009):325-331. |
入库方式： OAI收割
来源：上海天文台
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