RR Lyrae in M15: Fourier Decomposition and Physical Parameters
Abstract
The V and R light curves for 30 RR Lyrae stars in M15 were used to calculate their physical parameters. The Blazhko effect, previously reported in V12, was not detected. The determined values of the iron content and distance of the cluster are: [Fe/H] = 0.24 and d = 8.67 metallicity and metallicity - effective temperature, valid for globular clusters.
- Publication:
-
Binary Stars as Critical Tools & Tests in Contemporary Astrophysics
- Pub Date:
- August 2007
- DOI:
- Bibcode:
- 2007IAUS..240..605G