OB星协和年轻星团的形成与早期演化  

Formation and Early Evolution ofOB Associations and Young Star Clusters

作　　者：石火明[1] 王家骥[1] 

机构地区：[1]中国科学院上海天文台,上海210008

出　　处：《天文学进展》1997年第4期364-372,共9页Progress In Astronomy

基　　金：国家攀登计划资助

摘　　要：OB星协和年轻星团是恒星形成与早期演化的“化石”，同时也是研究初始质量函数（IMF）的最好场所．文中就OB星协和年轻星团的形成和早期演化方面的研究进展作一评述，还论述了IMF的测定和研究情况，并对相关的速逃OB星及蓝离散星问题作了简要介绍．OB associations and young star clusters are 'fossils' of star formation and early stellarevolution. They are also the best sites to determine the initial mass function (IMF). Withthe application of many new observational techniques and methods, studied on OB associationsand young star clusters are very active recently. In this paper, developments on studies of theformation and early evolution of these very young stellar systems are reviewed. The determinationand study of IMF are discussed. Two related problems, i.e., run away OB stars and bluestragglers, are briefly described.

关 键 词：疏散星团 星团 恒星 OB星协 早期演化 

分 类 号：P157.8[天文地球—天文学] P145.4