The behaviour of brighter binaries and yellow giants in open clusters
Abstract
The behavior of groups of massive stars in open clusters is examined. The high concentration of binaries and yellow giants toward the center of the open cluster NGC 2632 (Praesepe) is not a singular phenomenon. It can be found in the Hyades and in the Coma-Berenices cluster, which are nearly of equal age, but not in younger and older objects. This phenomenon depending on the mean mass of a star group, its evolutionary phase, the mean age of the cluster and the time of star formation within it, can be explained by the diagram of the evolution of star clusters, i.e., by cosmogonic reasons. It is not caused by gravitational effects.
- Publication:
-
Star Clusters and Associations and their Relation to the Evolution of the Galaxy
- Pub Date:
- 1983
- Bibcode:
- 1983scag.conf...49G
- Keywords:
-
- Binary Stars;
- Giant Stars;
- Open Clusters;
- Praesepe Star Clusters;
- Stellar Evolution;
- Stellar Mass;
- Chronology;
- Color;
- Graphs (Charts);
- Spectrum Analysis;
- White Dwarf Stars;
- Astrophysics