The role of binary stars in stellar population synthesis

摘要：

More than about 50％ stars are in binaries,but the effects of binary evolution were not taken into account in most previous stellar population synthesis studies. In fact,binaries can affect the integrated peculiarities such as spectral energy distributions (SEDs),colours,and line-strength indices of populations. With the effects of binary stars taken into account,some new results for stellar population studies will be shown. We discuss how binaries affect the colours and Lick indices of simple stellar populations,and the measurement of stellar ages and metallicities.

关键词： Galaxies:stellar content galaxies:evolution galaxies:formation

作者: Zhongmu Li Zhanwen Han

作者单位: National Astronomical Observatories/Yunnan Observatory,the Chinese Academy of Sciences,Kunming,65001 National Astronomical Observatories/Yunnan Observatory,the Chinese Academy of Sciences,Kunming,65001

会议类型: 国际会议

会议名称: The 252th Symposium of the International Astronomical Union(国际天文学联合会第252届研讨会)

会议地点: 海南三亚

会议语种:英文

页码: 359-364

在线出版日期: 2008-04-06（万方平台首次上网日期，不代表论文的发表时间）