自然杂志 ›› 2012, Vol. 34 ›› Issue (5): 256-260.

• 特约专稿 • 上一篇    下一篇

银河系自转曲线

赵君亮   

  1. 研究员,中国科学院上海天文台,上海 200030
  • 收稿日期:2012-05-30 修回日期:2012-06-30 出版日期:2012-10-25 发布日期:2012-10-25

Rotation Curve of the Milky Way Galaxy

ZHAO Jun-liang   

  1. Professor,Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030,China
  • Received:2012-05-30 Revised:2012-06-30 Online:2012-10-25 Published:2012-10-25

摘要: 测量银河系自转曲线对解决许多天体物理学问题是非常重要的,比如估算银河系总质量、确定物质的分布、探索暗物质等。通过对银河系自转曲线的研究发现, 在太阳圈之外,银河系自转曲线大致保持为平坦状,甚至略有抬高。

关键词: 银河系, 自转曲线, 星族Ⅰ, 中性氢巡天

Abstract: Measuring the Galactic rotation curve is of very importance for solving a number of astrophysical problems, such as estimating the total mass of the Galaxy, determining the distribution of matter, exploring dark mater, etc. It has been shown from almost all of studies on the Galactic rotation curve that the rotation curve of the outer Galaxy is roughly flat or appears to rise slightly from the Sun’s location to the heliocentric distance of 20 kpc.

Key words: Galaxy, rotation curve, population I, HI survey