The Galaxy in Context: Structural, Kinematic, and Integrated Properties

被引：1232

作者：

Bland-Hawthorn, Joss ^{[1
]}

Gerhard, Ortwin ^{[2
]}

机构：

[1] Univ Sydney, Sch Phys, Sydney Inst Astron, Sydney, NSW 2006, Australia

[2] Max Planck Inst Extraterr Phys, D-85741 Garching, Germany

来源：

ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, VOL 54 | 2016年 / 54卷

关键词：

Galaxy: structural components; stellar kinematics; stellar populations; dynamics; evolution; Local Group; cosmology; MILKY-WAY BULGE; DIGITAL SKY SURVEY; SUPERMASSIVE BLACK-HOLE; SAGITTARIUS-A-ASTERISK; DARK-MATTER HALO; GENEVA-COPENHAGEN SURVEY; METAL-POOR STARS; RR LYRAE STARS; SOLAR GALACTOCENTRIC DISTANCE; SPACELAB INFRARED TELESCOPE;

D O I：

10.1146/annurev-astro-081915-023441

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Our Galaxy, the Milky Way, is a benchmark for understanding disk galaxies. It is the only galaxy whose formation history can be studied using the full distribution of stars from faint dwarfs to supergiants. The oldest components provide us with unique insight into how galaxies form and evolve over billions of years. The Galaxy is a luminous (L-*) barred spiral with a central box/peanut bulge, a dominant disk, and a diffuse stellar halo. Based on global properties, it falls in the sparsely populated "green valley" region of the galaxy color-magnitude diagram. Here we review the key integrated, structural and kinematic parameters of the Galaxy, and point to uncertainties as well as directions for future progress. Galactic studies will continue to play a fundamental role far into the future because there are measurements that can only be made in the near field and much of contemporary astrophysics depends on such observations.

引用

页码：529 / +

页数：73

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