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Mixture Models for Studying Stellar Populations: Bivariate Relationships and Posterior Mixing Proportions Applicable to the Thick-Disk Problem
Published online by Cambridge University Press: 07 August 2017
Abstract
Finite mixture models provide a useful framework for analysing the overlapping spatial, kinematical, chemical, and age distributions of stellar populations. In this paper, the age-metallicity relationship is used to illustrate the properties of bivariate mixture distributions. The interpretation of bivariate scatter plots and ‘binning’ diagrams is discussed, and population membership is examined by computing posterior mixing proportions.
- Type
- I. The Stellar Populations in the Milky Way
- Information
- Symposium - International Astronomical Union , Volume 149: The Stellar populations of Galaxies , 1992 , pp. 103 - 108
- Copyright
- Copyright © Kluwer