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On the Percentage of Be Stars in Galactic Open Clusters
Published online by Cambridge University Press: 23 September 2016
Extract
Knowing that especially young clusters can contain a considerable high fraction of Be stars (Mermilliod 1982, Feast 1972) we made a spectroscopic study of Hα on the ratio of B/Be stars. The aim was to select normal B stars for chemical abundance analyses.
It is well known that a promising way to investigate the evolutionary status of Be stars is to study their frequency and positions in the H-R diagram of open clusters. However, these studies have not yet provided satisfactory results (cf. e.g. Slettebak 1985); observations concerning the B/Be star ratio are badly needed. Therefore we present our observations although they are only a by-product from a different program.
- Type
- V. Evolutionary Status of Be Stars
- Information
- International Astronomical Union Colloquium , Volume 92: Physics of Be Stars , August 1987 , pp. 503 - 504
- Copyright
- Copyright © Cambridge University Press 1987