Nonideal Magnetohydrodynamic Instabilities in Protoplanetary Disks: Vertical Modes and Reflection Asymmetry
文献类型：期刊论文
| 作者 | Wang, Lile1,2; Xu, Sheng1,2; Wang, Zhenyu3; Fang, Min4,5; Goodman, Jeremy6 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 972 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ad5f8d |
| 通讯作者 | Wang, Lile(lilew@pku.edu.cn) |
| 英文摘要 | Magnetized disk winds and wind-driven accretion are an essential and intensively studied dispersion mechanism of protoplanetary disks (PPDs). However, the stability of these mechanisms has yet to be adequately examined. This paper employs semi-analytic linear perturbation theories under nonideal magnetohydrodynamics, focusing on disk models whose magnetic diffusivities vary by a few orders of magnitude from the disk midplane to its surface. Linear modes are distinguished by their symmetry with respect to the midplane. These modes have qualitatively different growth rates: symmetric modes almost always decay, while at least one antisymmetric mode always has a positive growth rate. This growth rate decreases faster than the Keplerian angular velocity with cylindrical radius R in the disk and scales steeper than R -5/2 in the fiducial disk model. The growth of antisymmetric modes breaks the reflection symmetry across the disk equatorial plane, and may occur even in the absence of the Hall effect. In the disk regions where fully developed antisymmetric modes occur, accretion flows appear only on one side of the disk, while disk winds occur only on the other. This may explain the asymmetry of some observed PPD outflows. |
| WOS关键词 | WIND-DRIVEN ACCRETION ; T TAURI STARS ; MAGNETOROTATIONAL INSTABILITY ; GLOBAL SIMULATIONS ; OUTER REGIONS ; DEAD ZONE ; TURBULENCE ; OUTFLOW ; COEVOLUTION ; TRANSPORT |
| 资助项目 | Hefei institutes of Physical Science, Chinese Academy of Sciences[E35U0GBR121] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001303573200001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | Hefei institutes of Physical Science, Chinese Academy of Sciences |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/135028]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Wang, Lile |
| 作者单位 | 1.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 2.Peking Univ, Sch Phys, Dept Astron, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Plasma Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 4.Chinese Acad Sci, Purple Mt Observ, 10 Yuanhua Rd, Nanjing 210023, Peoples R China 5.Univ Sci & Technol China, Hefei 230026, Peoples R China 6.Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA |
| 推荐引用方式 GB/T 7714 | Wang, Lile,Xu, Sheng,Wang, Zhenyu,et al. Nonideal Magnetohydrodynamic Instabilities in Protoplanetary Disks: Vertical Modes and Reflection Asymmetry[J]. ASTROPHYSICAL JOURNAL,2024,972. |
| APA | Wang, Lile,Xu, Sheng,Wang, Zhenyu,Fang, Min,&Goodman, Jeremy.(2024).Nonideal Magnetohydrodynamic Instabilities in Protoplanetary Disks: Vertical Modes and Reflection Asymmetry.ASTROPHYSICAL JOURNAL,972. |
| MLA | Wang, Lile,et al."Nonideal Magnetohydrodynamic Instabilities in Protoplanetary Disks: Vertical Modes and Reflection Asymmetry".ASTROPHYSICAL JOURNAL 972(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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