The Galactic rotation curve from red clump stars

被引：0
|
作者：
Liu, Chao [1 ]
van de Ven, Glenn [2 ]
Fang, Min [3 ,4 ]
Wu, Yue [1 ]
Carrell, Kenneth [1 ]
Xue, Xiangxiang [1 ,2 ]
机构：
[1] Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, 20A Datun Rd, Beijing 100012, Peoples R China
[2] Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany
[3] Chinese Acedamy Sci, Purple Mt Observ, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
[4] Chinese Acedamy Sci, Key Lab Radio Astron, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
来源：
SETTING THE SCENE FOR GAIA AND LAMOST | 2014年 / 9卷 / 298期
关键词：
Galaxy: disk; Galaxy: kinematics and dynamics; Galaxy: structure;
D O I：
10.1017/S174392131300690X
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We use line-of-sight velocities of more than 4000 red clump stars observed from MMT/Hectospec to derive the Galactic rotation curve between 8 and 13 kpc in Galactocentric radius to better than 10 kms(-1). A three-component (bulge+disk+halo) with an additional massive ring of 1.66x10(10) M-circle dot at about 11.6 kpc provides an excellent fit with the observation.
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收藏
页码：424 / 424
页数：1
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