今天是   收藏本站 | 联系我们 | 上海天文台 | English
首页 研究领域 研究团组 科研人员 学术活动 工作机会 内部信息
19/01/2017 -Not-so-simple stellar populations in nearby, resolved massive star clusters

SHAO Astrophysics Colloquia

Title: Not-so-simple stellar populations in nearby, resolved massive star clusters
Speaker: Richard de Grijs (KIAA/Peking)

Time: 1:30 PM, January 19 (Thursday)  

Location: Lecture Hall, 3rd floor  

Abstract:

Until about a decade ago, star clusters were considered "simple" stellar populations: all stars in a cluster were thought to have similar ages and the same metallicity. Only the individual stellar masses were thought to vary, in essence conforming to a "universal" initial mass function. Over the past decade, this situation has changed dramatically. I will discuss my group's recent progress in this context, with particular emphasis on the properties and the alleged presence of multiple populations in Local Group star clusters across the full age range.  Our most recent results imply a reverse paradigm shift, back to the old simple stellar population picture for at least some intermediate- age (~2 Gyr-old) star clusters, which opens up exciting avenues for future research efforts.

共2页 1 2 下一页 尾页
©2008-2013 中国科学院上海天文台 版权所有
地址:上海市南丹路80号 邮编:200030 邮件:shao@shao.ac.cn