摘要
银河系是宇宙中数以百亿计星系中的一员.自威廉.赫歇尔以来,人们对银河系结构和运动状态的认识已有200多年历史,而有关银河系起源和演化的探索则只是在最近半个多世纪内才成为天文学的研究热点.文章在简述银河系认识史的基础上,对有关银河系形成和演化这一重要天体物理问题做了概要的评述,其中包括银河系厚盘的发现及其可能的形成机制.
The Milky Way galaxy is one of more than ten billions of kinematics of the galaxy have been investigated for more than 200 years galaxies in our universe. The structure and since the work of the famous British astronomer W. Herschel, but studies on its formation and evolution only attracted attention from astrophysicists some 50 odd years ago. In this paper the historical development of our knowledge of the galaxy is reviewed, followed by a brief discussion of the major astrophysical issues of its formation and evolution mechanism, including how the galactic thick disc was confirmed and its possible formation mechanism.
出处
《物理》
CAS
北大核心
2007年第11期833-839,共7页
Physics
关键词
天体物理
银河系
综述
银河系形成
银河系演化
astrophysics, Milky Way galaxy, review, galactic formation, galactic evolution
