Observation of a type of sporadic solar mass ejection and its physical interpretation with numerical simulation

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 太阳活动的多波段观测研究团组

	Observation of a type of sporadic solar mass ejection and its physical interpretation with numerical simulation
	Zhang, YA; Song, MT ; Ji, HS; Huang, GL
刊名	CHINESE ASTRONOMY AND ASTROPHYSICS
	2003-10-01
卷号	27 期号:4 页码:409-425
关键词	sun : mass ejection magnetohydrodynamical simulation
ISSN号	0275-1062
英文摘要	Seven mediate and small ejective events on the sun observed at Ganyu Observing Station of Purple Mountain Observatory in 2000 are investigated. It is found that they were not accompanied by brightening. Their lengths were in the range 1-2.5 x 10(4) km, their widths, 3-5 x 10(3) km, and their lifetimes, 3-7 minutes. They were produced at places of weak magnetic fields and far away from large sunspots. These ejections are interpreted by numerical simulation with 1-D hydrodynamic equations of flow along magnetic arcs. As demonstrated by the results, they are different from the spicules and surges simulated by Suematsu et al. and Shibata et al. They are not matter with photospheric or chromospheric densities pushed by shock waves or rebound shock waves toward the solar corona, rather, they are ejections formed by continuous matter flows after magnetic reconnection. After evolving for about 5 minutes, they can attain a stationary hydrodynamic state.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	MAGNETIC RECONNECTION ; LOWER ATMOSPHERE ; ELLERMAN BOMBS ; JET PHENOMENA ; SPICULES ; SURGES ; HYDRODYNAMICS ; MODELS
收录类别	SCI
语种	英语
WOS记录号	WOS:000186654100006
公开日期	2012-08-08
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/4610]
专题	紫金山天文台_太阳活动的多波段观测研究团组
作者单位	1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Zhang, YA,Song, MT,Ji, HS,et al. Observation of a type of sporadic solar mass ejection and its physical interpretation with numerical simulation[J]. CHINESE ASTRONOMY AND ASTROPHYSICS,2003,27(4):409-425.
APA	Zhang, YA,Song, MT,Ji, HS,&Huang, GL.(2003).Observation of a type of sporadic solar mass ejection and its physical interpretation with numerical simulation.CHINESE ASTRONOMY AND ASTROPHYSICS,27(4),409-425.
MLA	Zhang, YA,et al."Observation of a type of sporadic solar mass ejection and its physical interpretation with numerical simulation".CHINESE ASTRONOMY AND ASTROPHYSICS 27.4(2003):409-425.