We derive relative proper motions of stars in the fields of 12 galactic globular clusters: M12, NGC 6362, M4, M55, M22, NGC 6752, NGC 3201, M30, M10, NGC 362, M5, and 47 Tucanae. We determine membership probabilities for over 446 000 objects, and show that using them is an efficient method for separating members of the cluster from field stars. In particular, membership probabilities of variable stars including RR Lyrae stars, eclipsing binaries, and blue/yellow/red stragglers are determined.
The RR Lyrae 2017 Conference. Revival of the Classical Pulsators: from Galactic Structure to Stellar Interior Diagnostics
- Pub Date:
- June 2018
- Astrophysics - Solar and Stellar Astrophysics;
- Astrophysics - Astrophysics of Galaxies
- 24 pages, 35 figures, 6 tables. Accepted for publication in MNRAS. Figures of high quality on request