The nearby spiral density-wave structure of the Galaxy
文献类型：期刊论文
| 作者 | Griv, Evgeny1; Jiang, Ing-Guey2; Hou, Li-Gang3
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2017-07-01 |
| 卷号 | 468期号:3页码:3361-3367 |
| 关键词 | Galaxy: kinematics and dynamics Galaxy: structure galaxies: spiral |
| 英文摘要 | Accurate measurements of distances and line-of-sight velocities of 19291 intermediate-old giant stars in the near-infrared with typical uncertainties in the distances and velocities of 5 per cent and 0.1 km s(-1) have recently been carried out to examine the Galactic disc with the APOGEE survey. In the framework of the Lin-Shu density-wave proposal for the galactic spiral structure, we use the APOGEE-RC DR13 data to investigate coherent non-axisymmetric flows within a few kiloparsecs from the Sun which are superimposed on a circular motion in the disc. Systematic wave-like departures of velocities from circular motion for stars are really detected. These systematic non-circular velocities are used to recover the parameters of the spiral arm segments of density waves of the Galaxy in the solar vicinity. The results of the work can be tested with the large amount of data from the Gaia satellite mission in the near future. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | STAR-FORMING REGIONS ; MILKY-WAY ; DISK GALAXIES ; GALACTIC DISK ; TRIGONOMETRIC PARALLAXES ; RADIAL MIGRATION ; OWN GALAXY ; ARMS ; APOGEE ; MODES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000402808700067 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/8807]  |
| 专题 | 国家天文台_射电天文研究部 |
| 作者单位 | 1.Ben Gurion Univ Negev, Dept Phys, POB 653, IL-84105 Beer Sheva, Israel 2.Natl Tsing Hua Univ, Dept Phys, Kuang Fu Rd 101, Hsinchu 300, Taiwan 3.Chinese Acad Sci, Natl Astron Observ, 20A Da Tun Rd, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Griv, Evgeny,Jiang, Ing-Guey,Hou, Li-Gang. The nearby spiral density-wave structure of the Galaxy[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,468(3):3361-3367. |
| APA | Griv, Evgeny,Jiang, Ing-Guey,&Hou, Li-Gang.(2017).The nearby spiral density-wave structure of the Galaxy.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,468(3),3361-3367. |
| MLA | Griv, Evgeny,et al."The nearby spiral density-wave structure of the Galaxy".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 468.3(2017):3361-3367. |
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来源：国家天文台
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