High-resolution H alpha and Ca II K spectroscopic observations of Capella and the analysis

	High-resolution H alpha and Ca II K spectroscopic observations of Capella and the analysis
	Cha GW(茶光伟); Gong ZG(龚志刚); Xu J(许骏); Zhao, Zhaowang
刊名	PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
	1996-07
卷号	108 期号:725 页码:594-602
ISSN号	0004-6280
通讯作者	Cha, GW
产权排序	第一完成单位
英文摘要	We present and analyze high-resolution spectra of the H alpha and Ca II K lines of the Capella system observed from 1989 November to 1995 October, Besides the obvious shifts of the line profiles relating to the orbital motion of the binary system, the combined Ka lines, whose average equivalent width is -1700 m Angstrom, have an additional +/- 310 m Angstrom equivalent-width variation, and such a variation may, based on our quantitative estimation, come from the hot component. Most of the emission features in the Ca II K line center come front the cool star with short time-scale variation on both the emission strength and line profile.
学科主题	Astronomy & Astrophysics
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	STELLAR MODEL CHROMOSPHERES ; ACTIVE BINARY STARS ; GIANTS
收录类别	SCI
原文出处	http://adsabs.harvard.edu/abs/1996PASP..108..594C
语种	英语
WOS记录号	WOS:A1996UY24100007
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5139]
专题	云南天文台_恒星物理研究组
推荐引用方式 GB/T 7714	Cha GW,Gong ZG,Xu J,et al. High-resolution H alpha and Ca II K spectroscopic observations of Capella and the analysis[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,1996,108(725):594-602.
APA	茶光伟,龚志刚,许骏,&Zhao, Zhaowang.(1996).High-resolution H alpha and Ca II K spectroscopic observations of Capella and the analysis.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,108(725),594-602.
MLA	茶光伟,et al."High-resolution H alpha and Ca II K spectroscopic observations of Capella and the analysis".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 108.725(1996):594-602.