Accuracy Diagrams for the Galactic Rotation Curve and Kinematical Distances
arXiv:1104.4811 · doi:10.1093/pasj/63.4.813
Abstract
We revisit the methods to determine the Galactic rotation curve and kinematical distances from radial velocities and proper motions. We construct "accuracy diagrams" to show the distributions in the galactic plane of expected uncertainties in the derived quantities such as rotation velocities and kinematical distances. We discuss how to optimize the source selection for measurements of kinematical quantities based on the accuracy diagrams.
9 pages, 12 figures, PASJ accepted
References in corpus (4)
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- Astrometry of Galactic Star-Forming Region ON2N with VERA: Estimation of the Galactic Constants
- Astrometry of Galactic Star-Forming Region Onsala 1 with VERA: Estimation of Angular Velocity of Galactic Rotation at Sun
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- The TOP-SCOPE survey of PGCCs: PMO and SCUBA-2 observations of 64 PGCCs in the 2nd Galactic Quadrant
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- VERA astrometry toward the Perseus arm gap
- Radial Variations of the Volume- and Surface-Star Formation Laws in the Galaxy
- EAVN Astrometry toward the Extreme Outer Galaxy: Kinematic distance with the proper motion of G034.84-00.95
- Broad-velocity-width Molecular Features in the Galactic Plane
- The outer rotation curve project with VERA: Trigonometric parallax of IRAS 05168+3634