Period Changes of Rr-Lyrae Stars in the Large Magellanic Cloud Globular Cluster NGC2257
Abstract
Phase-shift diagrams are presented and period change rates are estimated for 19 of the 41 RR Lyrae stars in NGC 2257.
- Publication:
-
Structure and Evolution of the Magellanic Clouds
- Pub Date:
- September 1984
- DOI:
- 10.1017/S007418090003984X
- Bibcode:
- 1984IAUS..108...39N