Formation Scenarios of Hot Subdwarf Stars and their Implications for the Far-UV Excess of Elliptical Galaxies

	Formation Scenarios of Hot Subdwarf Stars and their Implications for the Far-UV Excess of Elliptical Galaxies
	Han ZW(韩占文); Chen XF(陈雪飞); Lei ZX(雷振新); Podsiadlowski, P; Chen XF(陈雪飞); Han ZW(韩占文); Lei ZX(雷振新)
	2012
会议名称	5th Meeting on Hot Subdwarf Stars and Related Objects
会议日期	2011-07-25
会议地点	Stellenbosch, SOUTH AFRICA
卷号	452
页码	3-12
通讯作者	Han, Z (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
英文摘要	In this talk, we review the latest various formation scenarios of hot subdwarf stars, and propose two new formation channels, an envelope ejection channel for metal-rich stellar population and a tidally enhanced stellar wind channel for a small fraction of binary systems. We then discuss the implications of the formation scenarios for far-UV excess of elliptical galaxies, and predict that the far-UV excess does not depend much on metallicity if the metallicity is lower than solar, but increases with mellallicity if the metallicity is over solar.
收录类别	CPCI
产权排序	第一完成单位
会议主办者	Univ W Cape
会议网址	http://adsabs.harvard.edu/abs/2012ASPC..452....3Hfor the Far-UV Excess of Elliptical Galaxies.pdf
会议录	Astronomical Society of the Pacific (ASP) Conference Series - FIFTH MEETING ON HOT SUBDWARF STARS AND RELATED OBJECTS
会议录出版者	ASTRONOMICAL SOC PACIFIC
会议录出版地	390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
学科主题	Astronomy & Astrophysics
语种	英语
ISBN号	978-1-58381-787-2
内容类型	会议论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/255]
专题	云南天文台_大样本恒星演化研究组
通讯作者	Han ZW(韩占文)
推荐引用方式 GB/T 7714	Han ZW,Chen XF,Lei ZX,et al. Formation Scenarios of Hot Subdwarf Stars and their Implications for the Far-UV Excess of Elliptical Galaxies[C]. 见:5th Meeting on Hot Subdwarf Stars and Related Objects. Stellenbosch, SOUTH AFRICA. 2011-07-25.http://adsabs.harvard.edu/abs/2012ASPC..452....3Hfor the Far-UV Excess of Elliptical Galaxies.pdf.