银河系结构的再认识——2.外区的翘曲结构  

Warp of the outer region of the Galaxy

作　　者：赵君亮[1] 

机构地区：[1]中国科学院上海天文台

出　　处：《自然杂志》2013年第6期396-401,共6页Chinese Journal of Nature

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。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.

关 键 词：银河系 银盘 翘曲结构 星族 近边增厚 

分 类 号：P156[天文地球—天文学]