The Milky Way's stellar disk Mapping and modeling the Galactic disk

被引：232

作者：

Rix, Hans-Walter ^{[1
]}

Bovy, Jo ^{[2
]}

机构：

[1] Max Planck Inst Astron, D-69117 Heidelberg, Germany

[2] Inst Adv Study, Princeton, NJ 08540 USA

来源：

ASTRONOMY AND ASTROPHYSICS REVIEW | 2013年 / 21卷

关键词：

Galaxy:; Disk; dynamics and kinematics; formation and evolution; stellar populations; Surveys; DIGITAL SKY SURVEY; SURFACE MASS DENSITY; MICROLENSING OPTICAL DEPTH; MONO-ABUNDANCE SUBPOPULATIONS; DARK-MATTER SUBSTRUCTURE; CIRCULAR-VELOCITY CURVE; NEARBY STARS; CHEMICAL EVOLUTION; THICK DISK; SOLAR NEIGHBORHOOD;

D O I：

10.1007/s00159-013-0061-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A suite of vast stellar surveys mapping the Milky Way, culminating in the Gaia mission, is revolutionizing the empirical information about the distribution and properties of stars in the Galactic stellar disk. We review and lay out what analysis and modeling machinery needs to be in place to test mechanism of disk galaxy evolution and to stringently constrain the Galactic gravitational potential, using such Galactic star-by-star measurements. We stress the crucial role of stellar survey selection functions in any such modeling; and we advocate the utility of viewing the Galactic stellar disk as made up of 'mono-abundance populations' (MAPs), both for dynamical modeling and for constraining the Milky Way's evolutionary processes. We review recent work on the spatial and kinematical distribution of MAPs, and point out how further study of MAPs in the Gaia era should lead to a decisively clearer picture of the Milky Way's dark-matter distribution and formation history.

引用

页数：58

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