Trigonometric Parallaxes of Four Star-forming Regions in the Distant Inner Galaxy

doi:10.3847/1538-4365/abd8cf

	Trigonometric Parallaxes of Four Star-forming Regions in the Distant Inner Galaxy
	Xu,Y.1; Bian,S. B.1,2; Reid,M. J.3; Li,J. J.1; Menten,K. M.4; Dame,T. M.3; Zhang,B.5; Brunthaler,A.4; Wu,Y. W.6; Moscadelli,L.7
刊名	The Astrophysical Journal Supplement Series
	2021-02-16
卷号	253 期号:1
关键词	Water masers Trigonometric parallax Star formation the Milky Way
ISSN号	0067-0049
DOI	10.3847/1538-4365/abd8cf
英文摘要	Abstract We have measured trigonometric parallaxes for four H2O masers associated with distant massive young stars in the inner regions of the Galaxy using the Very Long Baseline Array as part of the BeSSeL Survey. G026.50 + 0.28 is located at the near end of the Galactic bar, perhaps at the origin of the Norma spiral arm. G020.77?0.05 is in the Galactic Center region and is likely associated with a far-side extension of the Scutum arm. G019.60?0.23 and G020.08?0.13 are likely associated and lie well past the Galactic Center. These sources appear to be in the Sagittarius spiral arm, but an association with the Perseus arm cannot be ruled out.
语种	英语
出版者	The American Astronomical Society
WOS记录号	IOP:0067-0049-253-1-ABD8CF
内容类型	期刊论文
源URL	[http://210.72.145.45/handle/361003/10777]
专题	中国科学院国家授时中心
通讯作者	Xu,Y.
作者单位	1.Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210033, People's Republic of China; xuye@pmo.ac.cn 2.School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, People's Republic of China 3.Center for Astrophysics ∣ Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA 4.Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany 5.Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, People's Republic of China 6.National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, People's Republic of China 7.INAF-Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, I-50125 Firenze, Italy 8.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011, People's Republic of China 9.Nanjing University, Nanjing 20093, People's Republic of China
推荐引用方式 GB/T 7714	Xu,Y.,Bian,S. B.,Reid,M. J.,et al. Trigonometric Parallaxes of Four Star-forming Regions in the Distant Inner Galaxy[J]. The Astrophysical Journal Supplement Series,2021,253(1).
APA	Xu,Y..,Bian,S. B..,Reid,M. J..,Li,J. J..,Menten,K. M..,...&Zheng,X. W..(2021).Trigonometric Parallaxes of Four Star-forming Regions in the Distant Inner Galaxy.The Astrophysical Journal Supplement Series,253(1).
MLA	Xu,Y.,et al."Trigonometric Parallaxes of Four Star-forming Regions in the Distant Inner Galaxy".The Astrophysical Journal Supplement Series 253.1(2021).