中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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
DOI10.3847/1538-4357/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.

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