自然杂志 ›› 2013, Vol. 35 ›› Issue (6): 396-401.

• 特约专稿 • 上一篇    下一篇

银河系结构的再认识——2.外区的翘曲结构

赵君亮   

  1. 研究员,中国科学院上海天文台,上海 200030
  • 收稿日期:2013-05-17 修回日期:2013-06-17 出版日期:2013-12-25 发布日期:2013-12-25

Warp of the outer region of the Galaxy

ZHAO Jun-liang   

  1. Professor, Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China
  • Received:2013-05-17 Revised:2013-06-17 Online:2013-12-25 Published:2013-12-25

摘要: 银河系外部区域存在翘曲结构已是不争的事实,对不同类别示踪天体(如星族I 天体、分子云、星际尘埃、老年恒星等)实测结果的分析都确认了这一点。不过,关于翘曲结构的形成机制迄今尚未达成共识。

关键词: 银河系, 银盘, 翘曲结构, 星族, 近边增厚

Abstract:  It is now over 50 years since radio observations of neutral hydrogen revealed the gaseous disk of the Milky Way Galaxy to be warped and flaring. Subsequently, such a structure has also been observed in the distribution of various components of the Galaxy in different wavebands, such as population I objects, molecular clouds, interstellar dust and older star population.

Key words: Galaxy, Galactic disc, warp, population, flare