Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-27T09:36:34.374Z Has data issue: false hasContentIssue false
  • English
  • Français

Observational Evidence for Atmospheric Physical Characteristics Relevant to Stellar Evolution

Published online by Cambridge University Press:  30 March 2016

R. and G. Cayrel
R. and G. Cayrel*
Affiliation:
Observatoire de Paris

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.

As a star burns its nuclear fuel, its radius R and its luminosity L are modified. Its mass may as well be affected if the mass loss rate has a time scale comparable to the nuclear time scale; this is likely to occur for stars of very high luminosity. Currently, the change in radius R and luminosity L of an evolving star is described in the socalled theoretical Herzsprung-Russel diagramme with in abscissa the logarithm of the effective temperature defined by:

Type
Joint Dicussions
Information
Highlights of Astronomy , Volume 4 , Issue 2: Highlights of Astronomy. As presented at the XVIth General Assembly of the IAU, 1976 (Part II) , 1977 , pp. 105 - 114
Copyright
Copyright © Reidel 1977

References

Ayres, T. R., Johnson, H. R. 1976 Bull. Am. Astron. Soc. 8, 303.Google Scholar
Bell, R. A. 1970, Monthly Not. Roy. Astron. Soc. 148, 25.CrossRefGoogle Scholar
Hejlesen., P. M. I.A.U. Colloquium No.17. L’âge des étoiles (Ed. G., Cayrel et A.M., Delplace, Meudon, , 1972).Google Scholar
Maeder, A. 1976, Astron. Astrophys. 47, 389.Google Scholar
Mackle, R., Griffin, R., Griffin, R. and Holweger, H. 1975, Astron. Astrophys. 38, 239.Google Scholar
Olsen, E. M. 1971, Astron. Astrophys. 15, 161.Google Scholar
Perrin, M. N., Hejlesen, P. M., Cayrel De Strobel, G., Cayrel, R. 1977, Astron. Astrophys. (in press).Google Scholar
Philip, A. G. D. and Hayes, D. S. Multicolor photometry and the theoretical HR diagram, Dudley Observatory Reports, No.9 (1975) Albany, New York.Google Scholar
Preston, G. W., Kraft, R. P. and Wolff, S. C. 1964, Astrophys. J. 140, 235.Google Scholar
Williams, P. M. 1975, Monthly Not. Roy. Astron. Soc. 170, 343.CrossRefGoogle Scholar
Wilson, O. C. 1963, Astrophys. J. 138, 832.CrossRefGoogle Scholar
Wilson, O. C. and Bappu, M. K. V. 1957, Astrophys. J. 125, 661.CrossRefGoogle Scholar
Wilson, O. C., Skumanich, A. 1964, Astrophys. J. 140, 1401.CrossRefGoogle Scholar
Wilson, O. C., Wooley, R. 1970, Astrophys. J., 171, 565.Google Scholar