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Deuterium Burning and Pulsational Instabilities in Pre — Main — Sequence Stars

  • G. F. Gahm
  • R. Liseau
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 143)

Abstract

We have considered stellar pulsations in connection to T Tauri stars. In particular we have computed expected periods for fully convective contracting stars and the location of the beginning of intensive deuterium burning in the HR-diagram using modern values for the abundance of deuterium. If pulsational instabilities develop in this phase the expected periods range from a few hours to a few days. The results are discussed in relation to the star RY Lupi which exhibits rapid regular fluctuations in light.

Keywords

Pulsational Period Fundamental Period Evolutionary Track Tauri Star Instability Strip 
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. Bodenheimer, P.: 1965, Astrophys. J. 142, 451ADSCrossRefGoogle Scholar
  2. Bodenheimer, P.: 1966, Astrophys. J. 144,103ADSCrossRefGoogle Scholar
  3. Bouvier, J.: 1987, preprintGoogle Scholar
  4. Bouvier, J., Bertout, C, Benz, W., Mayor, M.: 1986, Astron. Astrophys. 165,110ADSGoogle Scholar
  5. Cox, J.P.: 1980, Theory of stellar pulsations, Princeton University PressGoogle Scholar
  6. Fischerström, C: 1987, Ph.D. Thesis, in preparationGoogle Scholar
  7. Gahm, G.F.: 1986, in Flares: Solar and stellar (ed. P. M. Gondhalekar), Rutherford Appleton Laboratory RAL-86–085, p. 124Google Scholar
  8. Graboske, H.C.Jr., Grossman, A.S.: 1971, Astrophys. J. 170, 363ADSCrossRefGoogle Scholar
  9. Grossman, A.C., Mutschlecner, J.P., Pauls, T.A.: 1971a, Astrophys. J. 162,113Google Scholar
  10. Grossman, A.C., Graboske, H.C. Jr.: 1971b, Astrophys. J. 164,475ADSCrossRefGoogle Scholar
  11. Hartmann, L., Hewett, R., Stahler, S., Mathieu, R.D.: 1986, Astrophys. J. 309, 275ADSCrossRefGoogle Scholar
  12. Hoffmeister, C.: 1965, Veröff. Sternwarte Sonneberg 6, 98ADSGoogle Scholar
  13. Iben, I. Jr.: 1965, Astrophys. J. 141, 993ADSCrossRefGoogle Scholar
  14. Liseau, R., Lindroos, K.P., Fischerström, C.: 1987, Astron. Astrophys., in pressGoogle Scholar
  15. Liseau, R., Fischerström, C, Gahm. G.F.: 1987, in the present volumeGoogle Scholar
  16. Mauder, H.: 1977, in The interaction of variable stars with their environment (eds. R. Kippenhahn, J. Rahe, W. Strohmeier) IAU Colloquium No. 42, p 66.Google Scholar
  17. Ostriker, J. P., Bodenheimer, P.: 1973, Astrophys. J. Lett. 184, L 15ADSGoogle Scholar
  18. Rogerson, J.B., York, D.G.: 1973, Astrophys. J. Lett. 186, L95ADSCrossRefGoogle Scholar
  19. Torna, E.: 1972, Astron. Astrophys. 19, 76ADSGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1988

Authors and Affiliations

  • G. F. Gahm
    • 1
  • R. Liseau
    • 1
  1. 1.Stockholm ObservatorySaltsjöbadenSweden

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