High-dispersion H alpha spectroscopy of epsilon Aurigae

	High-dispersion H alpha spectroscopy of epsilon Aurigae
	Cha GW(茶光伟); Tan HS(谭徽松); Xu J(许骏); Li YS(李永生)
刊名	ASTRONOMY & ASTROPHYSICS
	1994-04
卷号	284 期号:3 页码:874-882
关键词	STAR, EPSILON-AURIGAE-SPECTROSCOPIC BINARIES STARS, SUPERGIANTS STARS, CIRCUMSTELLAR MATTER
ISSN号	0004-6361
通讯作者	CHA, GW
产权排序	第一完成单位
英文摘要	Halpha spectroscopic observations have been made by using a high-dispersion and high-resolution thick CCD system, when the orbital phase of epsilon Aur was near 0.3. During two years of out-of-eclipse observations, the Halpha profile varied significantly. The circumstellar gas circling the F0 supergiant is possibly a ring-like H II structure, which consists of moving gaseous clouds. Halpha profile variation outside eclipse may be due to the apparent motion of gaseous clouds within the ring following the rotation of the primary, and to its intrinsic physical changes.
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]	STAR, EPSILON-AURIGAE-SPECTROSCOPIC BINARIES ; STARS, SUPERGIANTS ; STARS, CIRCUMSTELLAR MATTER
收录类别	SCI
原文出处	http://adsabs.harvard.edu/abs/1994A%26A...284..874C
语种	英语
WOS记录号	WOS:A1994NJ38500016
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5137]
专题	云南天文台_恒星物理研究组
作者单位	Yunnan Observatory, P.O. Box 110, Kunming, People's Republic of China
推荐引用方式 GB/T 7714	Cha GW,Tan HS,Xu J,et al. High-dispersion H alpha spectroscopy of epsilon Aurigae[J]. ASTRONOMY & ASTROPHYSICS,1994,284(3):874-882.
APA	Cha GW,Tan HS,Xu J,&Li YS.(1994).High-dispersion H alpha spectroscopy of epsilon Aurigae.ASTRONOMY & ASTROPHYSICS,284(3),874-882.
MLA	Cha GW,et al."High-dispersion H alpha spectroscopy of epsilon Aurigae".ASTRONOMY & ASTROPHYSICS 284.3(1994):874-882.