中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
A Solar Blowout Jet Caused by the Eruption of a Magnetic Flux Rope

文献类型:期刊论文

作者Cheng, Xin1,5; Huang, Chong2,3,6; Wang, Huaning4,6; Zhu, Xiaoshuai5,6; Zhu,Xiaoshuai; Wang,Huaning
刊名ASTROPHYSICAL JOURNAL LETTERS
出版日期2017-08-01
卷号844期号:2
关键词Sun: Activity Sun: Chromosphere Sun: Corona Sun: Magnetic Fields
DOI10.3847/2041-8213/aa8033
文献子类Article
英文摘要We investigate the three-dimensional (3D) magnetic structure of a blowout jet originating in the western edge of NOAA active region (AR) 11513 on 2012 July 2 by means of recently developed forced field extrapolation model. The results show that the blowout jet was caused by the eruption of the magnetic flux rope (MFR) consisting of twisted field lines. We further calculate the twist number T-w and squashing factor Q of the reconstructed magnetic field and find that (1) the MFR corresponds well with the high T-w region, and (2) the MFR outer boundary corresponds well with the high Q region, probably interpreting the bright structure at the base of the jet. The twist number of the MFR is estimated to be T-w = -1.54 +/- 0.67. Thus, the kink instability is regarded as the initiation mechanism of the blowout jet as T-w reaches or even exceeds the threshold value of the kink instability. Our results also indicate that the bright point at the decaying phase is actually composed of some small loops that are heated by the reconnection occurring above. In summary, the blowout jet is mostly consistent with the scenario proposed by Moore et al., except that the kink instability is found to be a possible trigger.
WOS关键词FORCED FIELD EXTRAPOLATION ; X-RAY JETS ; CORONAL HOLE ; TWIST ; DICHOTOMY ; EVOLUTION ; TOPOLOGY ; FLARES
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000406597400002
资助机构National Natural Science Foundation of China (NSFC)(11403044 ; National Natural Science Foundation of China (NSFC)(11403044 ; CAS Key Laboratory of Solar Activity, National Astronomical Observatories(KLSA201609) ; CAS Key Laboratory of Solar Activity, National Astronomical Observatories(KLSA201609) ; Natural Science Foundation of Shandong Province(ZR2014AP010) ; Natural Science Foundation of Shandong Province(ZR2014AP010) ; NJIT, US NSF(AGS-1250818) ; NJIT, US NSF(AGS-1250818) ; NASA(NNX13AG14G) ; NASA(NNX13AG14G) ; 11673035 ; 11673035 ; 11273031) ; 11273031) ; National Natural Science Foundation of China (NSFC)(11403044 ; National Natural Science Foundation of China (NSFC)(11403044 ; CAS Key Laboratory of Solar Activity, National Astronomical Observatories(KLSA201609) ; CAS Key Laboratory of Solar Activity, National Astronomical Observatories(KLSA201609) ; Natural Science Foundation of Shandong Province(ZR2014AP010) ; Natural Science Foundation of Shandong Province(ZR2014AP010) ; NJIT, US NSF(AGS-1250818) ; NJIT, US NSF(AGS-1250818) ; NASA(NNX13AG14G) ; NASA(NNX13AG14G) ; 11673035 ; 11673035 ; 11273031) ; 11273031)
源URL[http://ir.bao.ac.cn/handle/114a11/20067]  
专题国家天文台_太阳物理研究部
作者单位1.Nanjing Univ, Nanjing, Jiangsu, Peoples R China
2.Shandong Univ, Inst Space Sci, Weihai 264209, Peoples R China
3.Shandong Univ, Sch Space Sci & Phys, Weihai 264209, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
5.Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210093, Jiangsu, Peoples R China
6.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing, Peoples R China
推荐引用方式
GB/T 7714
Cheng, Xin,Huang, Chong,Wang, Huaning,et al. A Solar Blowout Jet Caused by the Eruption of a Magnetic Flux Rope[J]. ASTROPHYSICAL JOURNAL LETTERS,2017,844(2).
APA Cheng, Xin,Huang, Chong,Wang, Huaning,Zhu, Xiaoshuai,Zhu,Xiaoshuai,&Wang,Huaning.(2017).A Solar Blowout Jet Caused by the Eruption of a Magnetic Flux Rope.ASTROPHYSICAL JOURNAL LETTERS,844(2).
MLA Cheng, Xin,et al."A Solar Blowout Jet Caused by the Eruption of a Magnetic Flux Rope".ASTROPHYSICAL JOURNAL LETTERS 844.2(2017).

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来源:国家天文台

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