No CrossRef data available.
Article contents
The Distances to RR Lyrae Variables
Published online by Cambridge University Press: 19 July 2016
Extract
Of all the different methods employed to estimate the mean absolute magnitude of RR Lyrae variables, only an analysis of the Baade-Wesselink type can determine this quantity directly. The distance to a globular cluster can therefore be measured by determining <MV>RR for that cluster instead of being forced to assume that <MV>RR is the same as that of the nearby field variables. This is important in that the field stars may have a different luminosity than cluster variables. In addition, since <MV>RR should depend on the composition (especially helium) and history of mass loss of these stars, this quantity may vary from cluster to cluster.
- Type
- Chapter VIII. Poster Papers on Cluster Systems in Nearby Galaxies
- Information
- Copyright
- Copyright © Kluwer 1988