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A two-dimensional multi-band spectroheliograph
Xuan JY(宣家余); Lin J(林隽); XUAN, JY
发表期刊SOLAR PHYSICS
1993-04
卷号144期号:2页码:307-314
DOI10.1007/BF00627595
产权排序第1完成单位
收录类别SCI
摘要The present paper describes a two-dimensional multi-band spectrograph which is located at Yunnan Observatory (25-degrees-N 103-degrees-E), Kunming. The instrument consists of a coelostat system with an aperture of 40 cm, and spatial resolution better than 1'' under excellent seeing, and a spectrograph equipped with a plane reflecting grating. It can simultaneously obtain spectral data in ten bands, including the Balmer lines, metallic lines [Fe I lambda6173 angstrom, D1,2,3, Mg, and Ca II (H + K)] and He II lambda4686 angstrom. We are able to control the observational processes by means of a computer and obtain the following data synchronously or quasi-synchronously: multi-band spectra, Halpha filtergrams, magnetic field, and white light. With the aid of Halpha slit-jaw filtergrams, we can determine where and when the spectral data are obtained and, on the basis of analysing the spectral line profiles, we can understand the physical characteristics of an active region and derive the fields of physical parameters. For the line-of-sight velocities, the values measured are as high as hundreds of kilometers per second and as low as a few kilometers per second.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0038-0938
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WOS记录号WOS:A1993KT78300007
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6011
专题太阳物理研究组
通讯作者XUAN, JY
作者单位Yunnan Observatory, 650011, Kunming, YN, China
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GB/T 7714
Xuan JY,Lin J,XUAN, JY. A two-dimensional multi-band spectroheliograph[J]. SOLAR PHYSICS,1993,144(2):307-314.
APA Xuan JY,Lin J,&XUAN, JY.(1993).A two-dimensional multi-band spectroheliograph.SOLAR PHYSICS,144(2),307-314.
MLA Xuan JY,et al."A two-dimensional multi-band spectroheliograph".SOLAR PHYSICS 144.2(1993):307-314.
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