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I. Clusters and Associations

Published online by Cambridge University Press:  14 August 2015

Extract

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Renewed interest in the study of star clusters and associations has been aroused by at least three developments.

(a) Interpretation of the color-magnitude (C-M) diagrams of clusters and associations with a theory of stellar evolution promises to give data on galactic structure problems. Information of kinematic relations, origins, and past history of stars over the face of the H-R diagram will be available when proper evolutionary interpretation is achieved. Only by assembling C-M diagrams of many clusters of different ages and richness can the empirical approach to evolution be fully exploited.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 7: Second Conference on co-ordination of Galactic Research , 1959 , pp. 3 - 12
Copyright
Copyright © Cambridge University Press 1959 

References

[1] See, for instance, Sandage, A. Atroph. J. 125, 435, 1957.Google Scholar
[2] Trumpler, R.J. Lick Obs. Bull. 18, 167, 1938.Google Scholar
[3] Heckmann, O. and Lübeck, K. Mitteil. Astr. Ges. 1956, 16, 1957; see also Z. f. Aph. 45, 243, 1958.Google Scholar