Accuracy Diagrams for the Galactic Rotation Curve and Kinematical Distances

被引：17

作者：

Sofue, Yoshiaki ^{[1
,2
]}

机构：

[1] Meisei Univ, Dept Phys, Tokyo 1918506, Japan

[2] Univ Tokyo, Inst Astron, Tokyo 1810015, Japan

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN | 2011年 / 63卷 / 04期

关键词：

astrometry: distance; astrometry: proper motion; galaxies: ISM; galaxies: kinematics; galaxies: rotation curve; galaxies: the Galaxy; STAR-FORMING REGION; MILKY-WAY-GALAXY; 3-DIMENSIONAL DISTRIBUTION; VERA ESTIMATION; ASTROMETRY; DISK; ISM;

D O I：

10.1093/pasj/63.4.813

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We revisit methods used to determine the Galactic rotation curve and kinematical distances from radial velocities and proper motions. We construct "accuracy diagrams" to show the distributions in the galactic plane of expected uncertainties in the derived quantities, such as rotation velocities and kinematical distances. We discuss how to optimize the source selection for measurements of kinematical quantities based on accuracy diagrams.

引用

页码：813 / 821

页数：9

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