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 |
DOI | 10.3847/1538-4357/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. |
入库方式: OAI收割
来源:云南天文台
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