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The Hertzsprung-Russell diagrams for hot Stars and O- and T- associations

Published online by Cambridge University Press:  14 August 2015

I. M. Kopylov*
Affiliation:
Crimean Astrophysical Observatory, USSR

Extract

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One of the most important points in the study of the problem of the origin and evolution of stars is a detailed analysis of the structure of the HR diagram as a whole, and the structure of its separate sequences.

Type
I. The Observational Data on the Hertzsprung-Russell Diagram
Copyright
Copyright © CNRS 1959 

References

[1] Kopylov, I. M., Publ. Crimean Astrophys. Obs., 20, 1958.Google Scholar
[2] Kholopov, P. N., Astron. J. USSR, 35, No. 3, 1958.Google Scholar