THE PARALLAX OF W43: A MASSIVE STAR-FORMING COMPLEX NEAR THE GALACTIC BAR
文献类型：期刊论文
| 作者 | Zhang, B.1,2; Moscadelli, L.3; Sato, M.1; Reid, M. J.4; Menten, K. M.1; Zheng, X. W.5; Brunthaler, A.1; Dame, T. M.4; Xu, Y.6 ; Immer, K.1
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2014-02-01 |
| 卷号 | 781期号:2页码:0 |
| 关键词 | astrometry Galaxy: kinematics and dynamics masers stars: formation stars: individual (W43) techniques: high angular resolution |
| ISSN号 | 0004-637X |
| 英文摘要 | We report trigonometric parallax measurements of masers in the massive star-forming complex W43 from Very Long Baseline Array observations as part of the Bar and Spiral Structure Legacy Survey. Based on measurements of three 12 GHz methanol maser sources (G029.86-00.04, G029.95-00.01, and G031.28+00.06) and one 22 GHz water maser source (G031.58+ 00.07) toward W43, we derived a distance of 5.49(-0.34)(+0.39) kpc to W43. By associating the masers with CO molecular clouds, and associating the clouds kinematically with CO longitude-velocity spiral features, we assign W43 to the Scutum spiral arm, close to the near end of the Galactic bar. The peculiar motion of W43 is about 20 km s(-1) toward the Galactic Center and is very likely induced by the gravitational attraction of the bar. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | H-II REGIONS ; GHZ METHANOL MASERS ; BASE-LINE INTERFEROMETRY ; MILKY-WAY ; TRIGONOMETRIC PARALLAXES ; VLBI OBSERVATIONS ; MOLECULAR CLOUDS ; SPIRAL STRUCTURE ; BESSEL SURVEY ; INNER GALAXY |
| 收录类别 | SCI |
| 原文出处 | 10.1088/0004-637X/781/2/89 |
| 语种 | 英语 |
| WOS记录号 | WOS:000331171200033 |
| 公开日期 | 2014-11-21 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/10720]  |
| 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.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 3.Osserv Astrofis Arcetri, INAF, I-50125 Florence, Italy 4.Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA 5.Nanjing Univ, Dept Astron, Nanjing 210093, Jiangsu, Peoples R China 6.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, B.,Moscadelli, L.,Sato, M.,et al. THE PARALLAX OF W43: A MASSIVE STAR-FORMING COMPLEX NEAR THE GALACTIC BAR[J]. ASTROPHYSICAL JOURNAL,2014,781(2):0. |
| APA | Zhang, B..,Moscadelli, L..,Sato, M..,Reid, M. J..,Menten, K. M..,...&Immer, K..(2014).THE PARALLAX OF W43: A MASSIVE STAR-FORMING COMPLEX NEAR THE GALACTIC BAR.ASTROPHYSICAL JOURNAL,781(2),0. |
| MLA | Zhang, B.,et al."THE PARALLAX OF W43: A MASSIVE STAR-FORMING COMPLEX NEAR THE GALACTIC BAR".ASTROPHYSICAL JOURNAL 781.2(2014):0. |
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