Hostname: page-component-788cddb947-2s2w2 Total loading time: 0 Render date: 2024-10-19T11:21:49.786Z Has data issue: false hasContentIssue false
  • English
  • Français

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

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

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

Caloi, V., Castellani, V. and Tornambe, A. (1977). Astron. Astrophys. Suppl. (submitted to).Google Scholar
Cannon, R.D. (1974). Mon. Not. R. Astron. Soc. 167, 551.Google Scholar
Cannon, R.D. and Lee, S.W. (1973). unpublished.Google Scholar
Canterna, R. (1975). Astrophys. J. 200, L63.Google Scholar
Castellani, V. and Tornambe, A. (1977). Astron. Astrophys. (in press).Google Scholar
Rood, R.T. (1973). Astrophys. J. 184, 815.Google Scholar
Rossi, L. (1977). Internal Report (Frascati).Google Scholar