Structures of magnetized thin accretion disks
文献类型：期刊论文
| 作者 | Li, XQ; Ji, HS
|
| 刊名 | SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY
 |
| 出版日期 | 2002-11-01 |
| 卷号 | 45期号:11页码:1487-1496 |
| 关键词 | accretion disks young stellar objects magnetohydrodynamics |
| 英文摘要 | We investigate the magnetohydrodynamic (MHD) process in thin accretion disks. The relevant momentum as well as magnetic reduction equations in the thin disk approximation are included. On the basis of these equations, we examine numerically the stationary structures, including distributions of the surface mass density, temperature and flow velocities of a disk around a young stellar object (YSO). The numerical results are as follows: (i) There should be an upper limit to the magnitude of magnetic field, such an upper limit corresponds to the equipartition field. For relevant magnitude of magnetic field of the disk's interior the disk remains approximately Keplerian. (ii) The distribution of effective temperature T(r) is a smoothly decreasing function of radius with power index gamma = -1/2, corresponding to the observed radiation flux density, provided that the magnetic field is suitably chosen. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Mathematics, Applied ; Mathematics |
| 研究领域[WOS] | Mathematics |
| 关键词[WOS] | COLLIMATED ELECTROMAGNETIC JETS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000179209500015 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/15808]  |
| 专题 | 紫金山天文台_太阳活动的多波段观测研究团组 |
| 作者单位 | 1.Nanjing Normal Univ, Dept Phys, Nanjing 210097, Peoples R China 2.Chinese Acad Sci, Purple Mtn Observ, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, XQ,Ji, HS. Structures of magnetized thin accretion disks[J]. SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY,2002,45(11):1487-1496. |
| APA | Li, XQ,&Ji, HS.(2002).Structures of magnetized thin accretion disks.SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY,45(11),1487-1496. |
| MLA | Li, XQ,et al."Structures of magnetized thin accretion disks".SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY 45.11(2002):1487-1496. |
入库方式： OAI收割
来源：紫金山天文台
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。