Dynamics and collisions of episodic jets from black holes and accretion disk systems
文献类型：期刊论文
| 作者 | Meng Y(蒙盈); Lin J(林隽); Yuan, F; Lin J(林隽) ; Meng Y(蒙盈)
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| 刊名 | Research in Astronomy and Astrophysics
 |
| 出版日期 | 2015-02 |
| 卷号 | 15期号:2页码:207-214 |
| 关键词 | accretion black hole physics magnetohydrodynamics (MHD) ISM: jets and outflows gamma-ray bursts: general accretion disks |
| ISSN号 | 1674-4527 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Meng, Y (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | In many astrophysical black hole systems, episodic jets of plasma blobs have been observed, which are much faster and more powerful than continuous jets. A magnetohydrodynamical model was proposed by Yuan et al. to study the formation of episodic jets in Sgr A*. By taking Sgr A* and a stellar mass black hole as examples, we modify the model of Yuan et al. by including the effects of relativity, and further study the relativistic motion and expansion of episodic jets of plasma blobs. Then we study the collision between two consecutive ejections in the modified model, and calculate the magnetic energy released in the collision. Our results show two consecutive blobs can collide with each other, and the released magnetic energy is more than 10(50) erg, which supports the idea that a gamma-ray burst is powered by the collision of episodic jets, as suggested by Yuan & Zhang. |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | GAMMA-RAY BURSTS ; X-RAY ; SAGITTARIUS-A ; GRS 1915+105 ; RADIO JET ; RECONNECTION ; MODEL ; EJECTION ; FLARES ; GALAXY |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/1674-4527/15/2/005/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000348761500005 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6273]  |
| 专题 | 云南天文台_太阳物理研究组 |
| 通讯作者 | Meng Y(蒙盈) |
| 推荐引用方式 GB/T 7714 | Meng Y,Lin J,Yuan, F,et al. Dynamics and collisions of episodic jets from black holes and accretion disk systems[J]. Research in Astronomy and Astrophysics,2015,15(2):207-214. |
| APA | 蒙盈,林隽,Yuan, F,Lin J,&Meng Y.(2015).Dynamics and collisions of episodic jets from black holes and accretion disk systems.Research in Astronomy and Astrophysics,15(2),207-214. |
| MLA | 蒙盈,et al."Dynamics and collisions of episodic jets from black holes and accretion disk systems".Research in Astronomy and Astrophysics 15.2(2015):207-214. |
入库方式： OAI收割
来源：云南天文台
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