Dynamics and collisions of episodic jets from black holes and accretion disk systems

	Dynamics and collisions of episodic jets from black holes and accretion disk systems
	Meng Y(蒙盈); Lin J(林隽); Yuan, F; Lin J(林隽); Meng Y(蒙盈)
刊名	Research in Astronomy and Astrophysics
	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
通讯作者	Meng, Y (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
产权排序	第一完成单位
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
内容类型	期刊论文
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.