Magnetic stereoscopy of coronal loops in NOAA 8891

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 太阳高能及相关物理过程研究团组

	Magnetic stereoscopy of coronal loops in NOAA 8891
	Feng, L.; Wiegelmann, T.; Inhester, B.; Solanki, S.; Gan, W. Q.; Ruan, P.
刊名	SOLAR PHYSICS
	2007-04-01
卷号	241 期号:2 页码:235-249
关键词	ACTIVE-REGION LOOPS MAGNETOGRAPH DATA CONSTANT-ALPHA FIELD RECONSTRUCTION SOHO TEMPERATURES INFORMATION IMAGES EIT
ISSN号	0038-0938
英文摘要	The Solar TErrestrial RElations Observatory (STEREO) requires powerful tools for the three-dimensional (3D) reconstruction of the solar corona. Here we test such a program with data from SOHO and TRACE. By taking advantage of solar rotation, a newly developed stereoscopy tool for the reconstruction of coronal loops is applied to the solar active region NOAA 8891 observed from 1 March to 2 March 2000. The stereoscopic reconstruction is composed of three steps. First, we identify loop structures in two TRACE images observed from two vantage viewpoints approximately 17 degrees apart, which corresponds to observations made about 30 hours apart. In the second step, we extrapolate the magnetic field in the corona with the linear force-free field model from the photospheric line-of-sight SOHO/MDI data. Finally, combining the extrapolated field lines and one-dimensional loop curves from two different viewpoints, we obtain the 3D loop structures with the magnetic stereoscopy tool. We demonstrate that by including the magnetic modeling this tool is more powerful than pure geometrical stereoscopy, especially in resolving the ambiguities generated by classical stereoscopy. This work will be applied to the STEREO mission in the near future.
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]	ACTIVE-REGION LOOPS ; MAGNETOGRAPH DATA ; CONSTANT-ALPHA ; FIELD ; RECONSTRUCTION ; SOHO ; TEMPERATURES ; INFORMATION ; IMAGES ; EIT
收录类别	SCI
语种	英语
WOS记录号	WOS:000247458200003
公开日期	2012-02-05
内容类型	期刊论文
源URL	[http://159.226.72.40/handle/332002/2404]
专题	紫金山天文台_太阳高能及相关物理过程研究团组
作者单位	1.Max Planck Inst Sonnensystemforsch, D-37191 Katlenburg Lindau, Germany 2.Chinese Acad Sci, Purple Mt Observ, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Feng, L.,Wiegelmann, T.,Inhester, B.,et al. Magnetic stereoscopy of coronal loops in NOAA 8891[J]. SOLAR PHYSICS,2007,241(2):235-249.
APA	Feng, L.,Wiegelmann, T.,Inhester, B.,Solanki, S.,Gan, W. Q.,&Ruan, P..(2007).Magnetic stereoscopy of coronal loops in NOAA 8891.SOLAR PHYSICS,241(2),235-249.
MLA	Feng, L.,et al."Magnetic stereoscopy of coronal loops in NOAA 8891".SOLAR PHYSICS 241.2(2007):235-249.