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The Bar and Spiral Structure Legacy (BeSSeL) survey: Mapping the Milky Way with VLBI astrometry
文献类型：期刊论文
| 作者 | Brunthaler, A.1; Reid, M. J.2; Menten, K. M.1; Zheng, X. -W.3; Bartkiewicz, A.4; Choi, Y. K.1; Dame, T.2; Hachisuka, K.5; Immer, K.1,2; Moellenbrock, G.6 |
| 刊名 | ASTRONOMISCHE NACHRICHTEN
 |
| 出版日期 | 2011-06-01 |
| 卷号 | 332期号:5页码:461-466 |
| ISSN号 | 0004-6337 |
| 关键词 | astrometry Galaxy: fundamental parameters Galaxy: kinematics and dynamics Galaxy: structure |
| 英文摘要 | Astrometric Very Long Baseline Interferometry (VLBI) observations of maser sources in the Milky Way are used to map the spiral structure of our galaxy and to determine fundamental parameters such as the rotation velocity (Theta(0)) and curve and the distance to the Galactic center (R-0). Here, we present an update on our first results, implementing a recent change in the knowledge about the Solar motion. It seems unavoidable that the IAU recommended values for R0 and Theta(0) need a substantial revision. In particular the combination of 8.5 kpc and 220 km s(-1) can be ruled out with high confidence. Combining the maser data with the distance to the Galactic center from stellar orbits and the proper motion of Sgr A* gives best values of R-0 = 8.3 +/- 0.23 kpc and Theta(0) = 239 or 246 +/- 7 km s(-1), for Solar motions of V-circle dot = 12.23 and 5.25 km s(-1), respectively. Finally, we give an outlook to future observations in the Bar and Spiral Structure Legacy (BeSSeL) survey. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | LOCAL STELLAR KINEMATICS ; STAR-FORMING REGIONS ; TRIGONOMETRIC PARALLAXES ; PROPER MOTION ; GALACTIC PARAMETERS ; MAGELLANIC STREAM ; METHANOL MASERS ; ORION NEBULA ; BLACK-HOLE ; DISTANCE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000292004100004 |
| 公开日期 | 2012-08-07 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/4557]  |
| 专题 | 紫金山天文台_紫金山天文台青海观测站 |
| 作者单位 | 1.Max Planck Inst Radioastron, D-53121 Bonn, Germany 2.Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA 3.Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China 4.Nicholas Copernicus Univ, Torun Ctr Astron, PL-87100 Torun, Poland 5.Shanghai Astron Observ, Shanghai, Peoples R China 6.Natl Radio Astron Observ, Socorro, NM 87801 USA 7.Osserv Astrofis Arcetri, INAF, I-50125 Florence, Italy 8.Ist Fis Spazio Interplanetario IFSI INAF, I-00133 Rome, Italy 9.Univ Tokyo, Dept Astron, Grad Sch Sci, Tokyo 1130033, Japan 10.Chinese Acad Sci, Purple Mt Observ, Nanjing 210093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Brunthaler, A.,Reid, M. J.,Menten, K. M.,et al. The Bar and Spiral Structure Legacy (BeSSeL) survey: Mapping the Milky Way with VLBI astrometry[J]. ASTRONOMISCHE NACHRICHTEN,2011,332(5):461-466. |
| APA | Brunthaler, A..,Reid, M. J..,Menten, K. M..,Zheng, X. -W..,Bartkiewicz, A..,...&Zhang, B..(2011).The Bar and Spiral Structure Legacy (BeSSeL) survey: Mapping the Milky Way with VLBI astrometry.ASTRONOMISCHE NACHRICHTEN,332(5),461-466. |
| MLA | Brunthaler, A.,et al."The Bar and Spiral Structure Legacy (BeSSeL) survey: Mapping the Milky Way with VLBI astrometry".ASTRONOMISCHE NACHRICHTEN 332.5(2011):461-466. |
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