Vertical Oscillation of a Coronal Cavity Triggered by an EUV Wave

doi:10.3847/1538-4357/aac37e

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	Vertical Oscillation of a Coronal Cavity Triggered by an EUV Wave
	Zhang, Q. M.1,2; Ji, H. S.2
刊名	ASTROPHYSICAL JOURNAL
	2018-06-20
卷号	860 期号:2 页码:10
关键词	Sun: coronal mass ejections (CMEs) Sun: filaments, prominences Sun: flares Sun: oscillations
ISSN号	0004-637X
DOI	10.3847/1538-4357/aac37e
英文摘要	In this paper, we report our multiwavelength observations of the vertical oscillation of a coronal cavity on 2011 March 16. The elliptical cavity with an underlying horn-like quiescent prominence was observed by the Atmospheric Imaging Assembly on board the Solar Dynamics Observatory. The width and height of the cavity are 150 '' and 240 '', and the centroid of cavity is 128 '' above the solar surface. At similar to 17: 50 UT, a C3.8 two-ribbon flare took place in active region 11169 close to the solar western limb. Meanwhile, a partial halo coronal mass ejection erupted and propagated at a linear speed of similar to 682 km s(-1). Associated with the eruption, a coronal extremeultraviolet (EUV) wave was generated and propagated in the northeast direction at a speed of similar to 120 km s(-1). Once the EUV wave arrived at the cavity from the top, it pushed the large-scale overlying magnetic field lines downward before bouncing back. At the same time, the cavity started to oscillate coherently in the vertical direction and lasted for similar to 2 cycles before disappearing. The amplitude, period, and damping time are 2.4-3.5 Mm, 29-37 minutes, and 26-78 minutes, respectively. The vertical oscillation of the cavity is explained by a global standing MHD wave of fast kink mode. To estimate the magnetic field strength of the cavity, we use two independent methods of prominence seismology. It is found that the magnetic field strength is only a few Gauss and less than 10 G.
资助项目	NOAA ; NOAA, NASA ; USAF ; Youth Innovation Promotion Association CAS ; NSFC[11333009] ; NSFC[11790302] ; NSFC[11773079] ; Fund of Jiangsu Province[BK20161618] ; Fund of Jiangsu Province[BK20161095] ; "Strategic Pilot Projects in Space Science" of CAS[XDA15052200] ; CAS Key Laboratory of Solar Activity, National Astronomical Observatories[KLSA201716]
WOS关键词	DYNAMICS-OBSERVATORY SDO ; SOLAR PROMINENCE ; QUIESCENT PROMINENCE ; MAGNETOHYDRODYNAMIC WAVES ; MAGNETIC-STRUCTURE ; MORETON WAVE ; FLUX ROPE ; FILAMENT ; ERUPTION ; EIT
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000435654900003
资助机构	NOAA ; NOAA, NASA ; USAF ; Youth Innovation Promotion Association CAS ; NSFC ; Fund of Jiangsu Province ; "Strategic Pilot Projects in Space Science" of CAS ; CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; NOAA ; NOAA, NASA ; USAF ; Youth Innovation Promotion Association CAS ; NSFC ; Fund of Jiangsu Province ; "Strategic Pilot Projects in Space Science" of CAS ; CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; NOAA ; NOAA, NASA ; USAF ; Youth Innovation Promotion Association CAS ; NSFC ; Fund of Jiangsu Province ; "Strategic Pilot Projects in Space Science" of CAS ; CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; NOAA ; NOAA, NASA ; USAF ; Youth Innovation Promotion Association CAS ; NSFC ; Fund of Jiangsu Province ; "Strategic Pilot Projects in Space Science" of CAS ; CAS Key Laboratory of Solar Activity, National Astronomical Observatories
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/21924]
专题	中国科学院国家天文台
通讯作者	Zhang, Q. M.
作者单位	1.Natl Astron Observ, CAS Key Lab Solar Act, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Sci, Nanjing 210034, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Q. M.,Ji, H. S.. Vertical Oscillation of a Coronal Cavity Triggered by an EUV Wave[J]. ASTROPHYSICAL JOURNAL,2018,860(2):10.
APA	Zhang, Q. M.,&Ji, H. S..(2018).Vertical Oscillation of a Coronal Cavity Triggered by an EUV Wave.ASTROPHYSICAL JOURNAL,860(2),10.
MLA	Zhang, Q. M.,et al."Vertical Oscillation of a Coronal Cavity Triggered by an EUV Wave".ASTROPHYSICAL JOURNAL 860.2(2018):10.