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Dynamics and collisions of episodic jets from black holes and accretion disk systems
Meng Y(蒙盈)1,2; Lin J(林隽)1; Yuan, Feng3
Source PublicationResearch in Astronomy and Astrophysics
2015-02
Volume15Issue:2Pages:207-214
DOI10.1088/1674-4527/15/2/005
Contribution Rank第1完成单位
Indexed BySCI
Keywordaccretion, accretion disks black hole physics magnetohydrodynamics (MHD) ISM: jets and outflows gamma-ray bursts: general
Abstract

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.

Funding ProjectNational Basic Research Program of China (973 program)[2011CB811403] ; National Basic Research Program of China (973 program)[2013CBA01503] ; National Natural Science Foundation of China (NSFC)[11273055] ; National Natural Science Foundation of China (NSFC)[11333007] ; Chinese Academy of Sciences[KJCX2-EW-T07] ; Chinese Academy of Sciences[XDB09040202] ; NSFC[11121062] ; NSFC[11133005]
Funding OrganizationNational 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]
Language英语
Subject Area天文学 ; 太阳与太阳系 ; 太阳物理学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
Publication Place20A DATUN RD, CHAOYANG, BEIJING, 100012, PEOPLES R CHINA
ISSN1674-4527
URL查看原文
Archive Date2015-03-20
WOS IDWOS:000348761500005
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordGAMMA-RAY BURSTS ; X-RAY ; SAGITTARIUS-A ; GRS 1915+105 ; RADIO JET ; RECONNECTION ; MODEL ; EJECTION ; FLARES ; GALAXY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6273
Collection太阳物理研究组
Corresponding AuthorMeng Y(蒙盈)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
2.University of Chinese Academy of Sciences, Beijing 100049, China
3.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Meng Y,Lin J,Yuan, Feng. 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, Feng.(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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