Trigonometric Parallaxes of High-mass Star-forming Regions: Our View of the Milky Way
文献类型:期刊论文
作者 | Reid, M. J.13; Menten, K. M.12; Brunthaler, A.12; Zheng, X. W.11; Dame, T. M.13; Xu, Y.10; Li, J.10; Sakai, N.9; Wu, Y.7,8; Immer, K.6 |
刊名 | ASTROPHYSICAL JOURNAL |
出版日期 | 2019-11-10 |
卷号 | 885期号:2页码:18 |
ISSN号 | 0004-637X |
关键词 | Milky Way Milky Way dynamics Milky Way rotation Trigonometric parallax Star formation Gravitational wave sources |
DOI | 10.3847/1538-4357/ab4a11 |
通讯作者 | Reid, M. J.() |
英文摘要 | We compile and analyze approximately 200 trigonometric parallaxes and proper motions of molecular masers associated with very young high-mass stars. Most of the measurements come from the BeSSeL Survey using the VLBA and the Japanese VERA project. These measurements strongly suggest that the Milky Way is a four-arm spiral, with some extra arm segments and spurs. Fitting log-periodic spirals to the locations of the masers, allowing for ?kinks? in the spirals and using well-established arm tangencies in the fourth Galactic quadrant, allows us to significantly expand our view of the structure of the Milky Way. We present an updated model for its spiral structure and incorporate it into our previously published parallax-based distance-estimation program for sources associated with spiral arms. Modeling the three-dimensional space motions yields estimates of the distance to the Galactic center, |
WOS关键词 | GALACTIC DISTRIBUTION ; VERTICAL-DISTRIBUTION ; SPIRAL GALAXIES ; VERA ESTIMATION ; ROTATION CURVE ; PROPER MOTION ; H2O MASERS ; O-STARS ; DISTANCE ; ASTROMETRY |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000499873000001 |
源URL | [http://libir.pmo.ac.cn/handle/332002/35234] |
专题 | 中国科学院紫金山天文台 |
通讯作者 | Reid, M. J. |
作者单位 | 1.Leiden Univ, Leiden Observ, Niels Bohrweg 2, NL-2333 CA Leiden, Netherlands 2.Nicolaus Copernicus Univ, Fac Phys Astron & Informat, Ctr Astron, Grudziadzka 5, PL-87100 Torun, Poland 3.INAF Ist Radioastron, Italian ALMA Reg Ctr, Via P Gobetti 101, I-40129 Bologna, Italy 4.Arcetri Observ, Florence, Italy 5.Shanghai Astron Observ, 80 Nandan Rd, Shanghai, Peoples R China 6.Joint Inst VLBI ERIC, Postbus 2, NL-7990 AA Dwingeloo, Netherlands 7.Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan 8.Chinese Acad Sci, Natl Time Serv Ctr, Key Lab Precise Positioning & Timing Technol, Xian 710600, Shaanxi, Peoples R China 9.Korea Astron & Space Sci Inst, 776 Daedeokdae Ro, Daejeon 34055, South Korea 10.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Reid, M. J.,Menten, K. M.,Brunthaler, A.,et al. Trigonometric Parallaxes of High-mass Star-forming Regions: Our View of the Milky Way[J]. ASTROPHYSICAL JOURNAL,2019,885(2):18. |
APA | Reid, M. J..,Menten, K. M..,Brunthaler, A..,Zheng, X. W..,Dame, T. M..,...&van Langevelde, H. J..(2019).Trigonometric Parallaxes of High-mass Star-forming Regions: Our View of the Milky Way.ASTROPHYSICAL JOURNAL,885(2),18. |
MLA | Reid, M. J.,et al."Trigonometric Parallaxes of High-mass Star-forming Regions: Our View of the Milky Way".ASTROPHYSICAL JOURNAL 885.2(2019):18. |
入库方式: OAI收割
来源:紫金山天文台
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