Plage and flare activity of the RS CVn-type star UX arietis during 2001-2002

	Plage and flare activity of the RS CVn-type star UX arietis during 2001-2002
	Gu SH(顾盛宏); Gu SH(顾盛宏)
	2005
会议名称	226th Symposium of the International-Astronomical-Union
会议日期	2004-09-13
会议地点	Beijing, PEOPLES R CHINA
关键词	binaries : spectroscopic stars : chromospheres stars : activity stars : flare
期号	226
页码	501-505
通讯作者	Gu, SH (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming, Peoples R China.
英文摘要	The very active RS CVn-type star UX Ari was observed using high-resolution echelle spectrograph attached to the 2.16m telescope of Xinglong station in Nov.-Dec. 2001 and Dec. 2002. By means of synthetic spectral subtraction method, the information about chromospheric activity of the system was obtained through several chrornospheric activity indicators Hel D(3), NaI D(1)D(2), H alpha, and Call IRT lines. Based on the analysis for these activity indicators, we found that the chromospheric activity of UX Ari showed obvious orbital modulation phenomenon, and the favorite active longitudes were around the quadratures of the binary system. During the two observing runs, hot plage and very strong optical flare events were detected, which were always happened around the favorite active longitudes of the system. Moreover, they were linked with the photospheric starspots in spatial structure, and appeared just above the main starspots.
收录类别	CPCI
产权排序	第一完成单位
会议网址	http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=310511&fileId=S1743921305001134
会议录	IAU Symposium Proceedings Series - CORONAL AND STELLAR MASS EJECTIONS
会议录出版者	CAMBRIDGE UNIV PRESS
会议录出版地	THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
学科主题	Astronomy & Astrophysics
语种	英语
ISSN号	1743-9213
ISBN号	0-521-85197-1
内容类型	会议论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/289]
专题	云南天文台_恒星物理研究组
通讯作者	Gu SH(顾盛宏)
推荐引用方式 GB/T 7714	Gu SH,Gu SH. Plage and flare activity of the RS CVn-type star UX arietis during 2001-2002[C]. 见:226th Symposium of the International-Astronomical-Union. Beijing, PEOPLES R CHINA. 2004-09-13.http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=310511&fileId=S1743921305001134.