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How far away and how old are these stars?

Published online by Cambridge University Press:  07 March 2018

Paul J. McMillan  and
the RAVE Collaboration
Paul J. McMillan
Affiliation:
Lund Observatory, Lund University, Department of Astronomy and Theoretical Physics, Box 43, SE-22100, Lund, Sweden email: [email protected]
the RAVE Collaboration
Affiliation:
Lund Observatory, Lund University, Department of Astronomy and Theoretical Physics, Box 43, SE-22100, Lund, Sweden email: [email protected]
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Abstract

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RAVE is the spectroscopic survey with the largest overlap with TGAS (around 200000 stars). Since RAVE's fourth data release, it has contained distance estimates based on a Bayesian estimation scheme. Here we compare these estimates to TGAS's parallaxes, to determine the strengths and weaknesses of each. We also combine the two datasets together to find more precise distance estimates for all these stars.

Keywords

surveysGalaxy: structureGalaxy: kinematics and dynamicsmethods: statistical
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S330: Astrometry and Astrophysics in the Gaia sky , April 2017 , pp. 239 - 240
Copyright
Copyright © International Astronomical Union 2018 

References

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