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Kinematics of the Local Spiral Structure Revealed by Young Stars in \emph{Gaia}~DR3
Dejian Liu, Ye Xu, Chaojie Hao +4
Using young open clusters and O--B2-type stars in~\emph{Gaia}~DR3, we investigate the kinematics of the local spiral structure. In general, the young sources in the outer spiral ar…
ALMA and VLBA views on the outflow associated with an O-type protostar in G26.50+0.28
Gang Wu, Christian Henkel, Ye Xu +6
Protostellar jets and outflows are essential ingredients of the star formation process. A better understanding of this phenomenon is important in its own right as well as for many…
A comparison of the local spiral structure from Gaia DR2 and VLBI maser parallaxes
Y. Xu, S. B. Bian, M. J. Reid +8
Context. The Gaia mission has released the second data set (Gaia DR2), which contains parallaxes and proper motions for a large number of massive, young stars. Aims. We investigate…
Trigonometric Parallaxes of High Mass Star Forming Regions: the Structure and Kinematics of the Milky Way
M. J. Reid, K. M. Menten, A. Brunthaler +13
Over 100 trigonometric parallaxes and proper motions for masers associated with young, high-mass stars have been measured with the BeSSeL Survey, a VLBA key science project, the EV…
Trigonometric Parallaxes of Massive Star-Forming Regions. IX. The Outer Arm in the First Quadrant
A. Sanna, M. J. Reid, T. M. Dame +5
We report a trigonometric parallax measurement with the Very Long Baseline Array for the water maser in the distant high-mass star-forming region G75.30+1.32. This source has a hel…
Trigonometric Parallaxes of Massive Star Forming Regions: VIII. G12.89+0.49, G15.03-0.68 (M17) and G27.36-0.16
Y. Xu, L. Moscadelli, M. J. Reid +4
We report trigonometric parallaxes for three massive star forming regions, corresponding to distances of kpc for G12.89+0.49 (also known as IRAS 18089-1732),…
A Trigonometric Parallax of Sgr B2
M. J. Reid, K. M. Menten, X. W. Zheng +2
We have measured the positions of water masers in Sgr B2, a massive star forming region in the Galactic center, relative to an extragalactic radio source with the Very Long Baselin…