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The Expected Morphology of Zero Age Horizontal Branches

Published online by Cambridge University Press:  14 August 2015

Vittorio Castellani
Vittorio Castellani*
Affiliation:
Istituto di Astronomia, Universita di Roma

Extract

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On the basis of available theoretical evaluations of the H-burning evolutionary phases of Population II stars, it is at present quite simple to predict the expected location of Zero-Age Horizontal-Branch (ZAHB) stars for assumed values of the age and original chemical composition. A result of such a computation is disclosed in Fig. 1, for the labelled values of the assumed evolutionary parameters.

Type
Part V: HR Diagrams, Horizontal Branch
Information
Symposium - International Astronomical Union , Volume 80: The HR Diagram , 1978 , pp. 221 - 224
Copyright
Copyright © Reidel 1978 

References

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