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Trigonometric Parallaxes of High-mass Star-forming Regions: Our View of the Milky Way
Reid, M. J.1; Menten, K. M.2; Brunthaler, A.2; Zheng, X. W.3; Dame, T. M.1; Xu, Y.4; Li, J.4; Sakai, N.5; Wu, Y.6,7; Immer, K.8; Zhang, B.9; Sanna, A.2; Moscadelli, L.10; Rygl, K. L. J.11; Bartkiewicz, A.12; Hu, B.4; Quiroga-Nunez, L. H.8,13; van Langevelde, H. J.8,13
2019-11-10
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume885Issue:2Pages:18
Corresponding AuthorReid, M. J.()
AbstractWe 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,
KeywordMilky Way Milky Way dynamics Milky Way rotation Trigonometric parallax Star formation Gravitational wave sources
DOI10.3847/1538-4357/ab4a11
WOS KeywordGALACTIC DISTRIBUTION ; VERTICAL-DISTRIBUTION ; SPIRAL GALAXIES ; VERA ESTIMATION ; ROTATION CURVE ; PROPER MOTION ; H2O MASERS ; O-STARS ; DISTANCE ; ASTROMETRY
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000499873000001
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/35235
Collection中国科学院紫金山天文台
Corresponding AuthorReid, M. J.
Affiliation1.Harvard & Smithsonian, Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA
2.Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany
3.Nanjing Univ, Dept Astron, Nanjing 210093, Jiangsu, Peoples R China
4.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
5.Korea Astron & Space Sci Inst, 776 Daedeokdae Ro, Daejeon 34055, South Korea
6.Chinese Acad Sci, Natl Time Serv Ctr, Key Lab Precise Positioning & Timing Technol, Xian 710600, Shaanxi, Peoples R China
7.Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan
8.Joint Inst VLBI ERIC, Postbus 2, NL-7990 AA Dwingeloo, Netherlands
9.Shanghai Astron Observ, 80 Nandan Rd, Shanghai, Peoples R China
10.Arcetri Observ, Florence, Italy
11.INAF Ist Radioastron, Italian ALMA Reg Ctr, Via P Gobetti 101, I-40129 Bologna, Italy
12.Nicolaus Copernicus Univ, Fac Phys Astron & Informat, Ctr Astron, Grudziadzka 5, PL-87100 Torun, Poland
13.Leiden Univ, Leiden Observ, Niels Bohrweg 2, NL-2333 CA Leiden, Netherlands
Recommended Citation
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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