中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Mapping the Galactic Disk with the LAMOST and Gaia Red Clump Sample. IV. The Kinematic Signature of the Galactic Warp

文献类型:期刊论文

作者Li, X. -Y.1; Huang, Y.1; Chen, B. -Q.1; Wang, H. -F.1; Sun, W. -X.1; Guo, H. -L.1; Li QZ(李清政)2; Liu, X. -W.1
刊名ASTROPHYSICAL JOURNAL
出版日期2020-09-01
卷号901期号:1页码:6
ISSN号0004-637X
关键词Milky Way disk Milky Way dynamics Stellar kinematics Red giant branch
DOI10.3847/1538-4357/aba61e
产权排序第2完成单位
文献子类Article
英文摘要

Using a sample of nearly 140,000 red clump stars selected from the LAMOST and Gaia Galactic surveys, we have mapped mean vertical velocity (V) over bar (z) in the X-Y plane for a large volume of the Galactic disk (6 < R.<.16 kpc; -20.(z) increases with R is detected for the chemically thin disk. The signature for the thick disk, however, is not significant, in line with the hot nature of this disk component. For the thin disk, the warp signature shows significant variations in both the radial and azimuthal directions, in excellent agreement with the previous results of star counts. Fitting the two-dimensional distribution of (V) over bar (z) with a simple long-lived static warp model yields a line-of-node angle for this kinematic warp of about 12 degrees. 5, again consistent with the previous results.

学科主题天文学 ; 星系与宇宙学 ; 星系天文学
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词LOCAL STANDARD ; THICK DISK ; OB STARS ; MILKY ; TRENDS ; GALAXY ; FLARE ; MAP
资助项目National Development and Reform Commission ; Special fund for Advanced Users ; Royal Society University Research of Fellowship ; National Natural Science Foundation of China[11903027] ; National Natural Science Foundation of China[11833006] ; National Natural Science Foundation of China[11973001] ; National Natural Science Foundation of China[11811530289] ; National Natural Science Foundation of China[U1731108] ; National Natural Science Foundation of China[U1531244] ; National Key R&D Program of China[2019YFA0405503] ; Yunnan University grant[C176220100006] ; Yunnan University grant[C176220100007] ; LAMOST Fellow project ; China Postdoctoral Science Foundation[2019M653504] ; Yunnan province postdoctoral Directed culture Foundation ; Cultivation Project for LAMOST Scientific Payoff and Research Achievement of CAMS-CAS
WOS研究方向Astronomy & Astrophysics
语种英语
出版者IOP PUBLISHING LTD
WOS记录号WOS:000574489200001
资助机构National Development and Reform Commission ; Special fund for Advanced Users ; Royal Society University Research of Fellowship ; National Natural Science Foundation of China[11903027, 11833006, 11973001, 11811530289, U1731108, U1531244] ; National Key R&D Program of China[2019YFA0405503] ; Yunnan University grant[C176220100006, C176220100007] ; LAMOST Fellow project ; China Postdoctoral Science Foundation[2019M653504] ; Yunnan province postdoctoral Directed culture Foundation ; Cultivation Project for LAMOST Scientific Payoff and Research Achievement of CAMS-CAS
源URL[http://ir.ynao.ac.cn/handle/114a53/23799]  
专题云南天文台_丽江天文观测站(南方基地)
通讯作者Huang, Y.; Liu, X. -W.
作者单位1.South-Western Institute for Astronomy Research, Yunnan University, Kunming 650500, People's Republic of China
2.Yunnan Observatories, Chinese Academy of Sciences, Kunming, Yunnan 650011, People's Republic of China
推荐引用方式
GB/T 7714
Li, X. -Y.,Huang, Y.,Chen, B. -Q.,et al. Mapping the Galactic Disk with the LAMOST and Gaia Red Clump Sample. IV. The Kinematic Signature of the Galactic Warp[J]. ASTROPHYSICAL JOURNAL,2020,901(1):6.
APA Li, X. -Y..,Huang, Y..,Chen, B. -Q..,Wang, H. -F..,Sun, W. -X..,...&Liu, X. -W..(2020).Mapping the Galactic Disk with the LAMOST and Gaia Red Clump Sample. IV. The Kinematic Signature of the Galactic Warp.ASTROPHYSICAL JOURNAL,901(1),6.
MLA Li, X. -Y.,et al."Mapping the Galactic Disk with the LAMOST and Gaia Red Clump Sample. IV. The Kinematic Signature of the Galactic Warp".ASTROPHYSICAL JOURNAL 901.1(2020):6.

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来源:云南天文台

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