• Corpus ID: 248811721

On the Accuracy of Three-dimensional Kinematic Distances

  title={On the Accuracy of Three-dimensional Kinematic Distances},
  author={Mark J. Reid},
  • M. Reid
  • Published 13 May 2022
  • Physics
Over the past decade, the BeSSeL Survey and the VERA project have measured trigonometric parallaxes to ≈ 250 massive, young stars using VLBI techniques. These sources trace spiral arms over nearly half of the Milky Way. What is now needed are accurate distances to such stars which are well past the Galactic center. Here we analyze the potential for addressing this need by combining line-of-sight velocities and proper motions to yield 3D kinematic distance estimates. For sources within about 10… 

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