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Dynamics and collisions of episodic jets from black holes and accretion disk systems
Meng Y(蒙盈); Lin J(林隽); Yuan, F; Meng, Y (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊Research in Astronomy and Astrophysics
2015-02
卷号15期号:2页码:207-214
DOI10.1088/1674-4527/15/2/005
产权排序第1完成单位
收录类别SCI
关键词Black Hole Physics Accretion Magnetohydrodynamics (Mhd) Accretion Disks Ism: Jets And Outflows Gamma-ray Bursts: General
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.
项目资助者National Basic Research Program of China (973 program) [2011CB811403, 2013CBA01503] ; National Natural Science Foundation of China (NSFC) [11273055, 11333007] ; Chinese Academy of Sciences [KJCX2-EW-T07, XDB09040202] ; NSFC [11121062, 11133005]
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN1674-4527
URL查看原文
归档日期2015-03-20
WOS记录号WOS:000348761500005
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]GAMMA-RAY BURSTS ; X-RAY ; SAGITTARIUS-A ; GRS 1915+105 ; RADIO JET ; RECONNECTION ; MODEL ; EJECTION ; FLARES ; GALAXY
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6273
专题太阳物理研究组
通讯作者Meng, Y (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
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 Meng Y,Lin J,Yuan, F,&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 Meng Y,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.
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