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Astrophysics and Space Science

, Volume 3, Issue 4, pp 552–563 | Cite as

Convection in normal stars and metal-deficient stars

  • K. S. Krishna Swamy
Article
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Abstract

The depths at which convection starts have been calculated for main sequence stars and giant stars of various effective temperature and hydrogen-to-metal ratios. It is found that for late-type stars ofTe≲4400 K convenction stars at τ≲0.1. In metal-deficient stars convection starts at shallower optical depths compared to normal stars of the same spectral type. The larger the metal deficiency, the shallower is the depth at which convection starts. The importance of convection in the study of metal-deficient stars and late type stars are also discussed.

Keywords

Convection Optical Depth Late Type Effective Temperature Spectral Type 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Auman, J.: 1968 (Preprint).Google Scholar
  2. Böhm, K.-H.: 1963,Z. Astrophys. J. 137, 881.Google Scholar
  3. Böhm-Vitense, E.: 1958,Z. Astrophys. 46, 108.Google Scholar
  4. Cayrel, R. andJugaku, J.: 1963,Ann. Astrophys. 26, 495.Google Scholar
  5. Cohen, J. G. andStrom, S. E.: 1968,Astrophys. J. 151, 623.Google Scholar
  6. Dennis, T. R.: 1968,Astrophys. J. Letters 151, L47.Google Scholar
  7. Fischel, D.: 1968,Astrophys. J. 152, 353.Google Scholar
  8. Goldberg, L., Muller, E. A., andAller, L. H.: 1960,Astrophys. J. Suppl. Ser. 5, 1.Google Scholar
  9. Krishna Swamy, K. S.: 1961,Astrophys. J. 134, 1017.Google Scholar
  10. Krishna Swamy, K. S.: 1966a,Astrophys. J. 145, 174.Google Scholar
  11. Krishna Swamy, K. S.: 1966b,Astrophys. J. 146, 731.Google Scholar
  12. Krishna Swamy, K. S.: 1967,Astrophys. J. 150, 1161.Google Scholar
  13. Krishna Swamy, K. S.: 1968a,Astrophys. J. 152, 477.Google Scholar
  14. Krishna Swamy, K. S.: 1968b, inSymposium on Low Luminosity Stars, Charlottesville (in press).Google Scholar
  15. Krishna Swamy, K. S.: 1968c (in preparation).Google Scholar
  16. Melbourne, W. G.: 1960,Astrophys. J. 132, 101.Google Scholar
  17. Mitchell, W. E.: 1959,Astrophys. J. 129, 369.Google Scholar
  18. Schwarzschild, K.: 1906,Gött. Nachr. No. 1, p. 41.Google Scholar
  19. Strom, S. E., Cohen, J. G., andStrom, K. M.: 1967,Astrophys. J. 147, 1038.Google Scholar
  20. Underhill, A. B.: 1949Monthly Notices Roy. Astron. Soc. 109, 562.Google Scholar
  21. Unsöld, A.: 1930,Z. Astrophys. 1, 138.Google Scholar
  22. Unsöld, A.: 1938,Physik der Sternatmosphäre, Springer, Berlin, p. 382.Google Scholar
  23. Vardya, M. S.: 1965,Monthly Notices Roy. Astron. Soc. 129, 205.Google Scholar
  24. Vardya, M. S.: 1966,Monthly Notices Roy. Astron. Soc. 134, 347.Google Scholar

Copyright information

© D. Reidel Publishing Company 1969

Authors and Affiliations

  • K. S. Krishna Swamy
    • 1
  1. 1.Goddard Space Flight CenterGreenbeltUSA

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