Trigonometric Parallaxes of Star-forming Regions beyond the Tangent Point of the Sagittarius Spiral Arm

• Published in: The Astrophysical journal Vol. 874; no. 1; pp. 94 - 106
• Main Authors: Wu, Y. W., Reid, M. J., Sakai, N., Dame, T. M., Menten, K. M., Brunthaler, A., Xu, Y., Li, J. J., Ho, B., Zhang, B., Rygl, K. L. J., Zheng, X. W.
• Format: Journal Article
• Language: English
• Published: Philadelphia The American Astronomical Society 20.03.2019; IOP Publishing
• Subjects: astrometry; Astrophysics; Galaxy: kinematics and dynamics; Galaxy: structure; masers; Massive stars; Milky Way; Parallax; Pitch (inclination); Star formation; Stars & galaxies; stars: formation

As part of the BeSSeL Survey, we report trigonometric parallaxes and proper motions of molecular maser sources associated with 13 distant high-mass star-forming regions in the Sagittarius spiral arm of the Milky Way. In particular, we obtain improved parallax distance estimates for three well-studie...