How far away and how old are these stars?
Abstract
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.
- Publication:
-
Astrometry and Astrophysics in the Gaia Sky
- Pub Date:
- April 2018
- DOI:
- 10.1017/S1743921317006354
- Bibcode:
- 2018IAUS..330..239M
- Keywords:
-
- surveys;
- Galaxy: structure;
- Galaxy: kinematics and dynamics;
- methods: statistical