Turbulence in the atmospheres of eclipsing binary stars

  • K. O. Wright
2. Observed Properties of Stellar Turbulence
Part of the Lecture Notes in Physics book series (LNP, volume 114)


A review of the orbits and dimensions of the C Aurigae systems is given, based on photometric and spectrographic observations. The Ca II K-Tine has been studied intensively to determine the extent and uneven structure of the chromospheres of these stars; the multiple structure of this line observed at several eclipses confirms the presence of large-scale clouds in the atmospheres. Measurements of line profiles and equivalent widths show that macroturbulent velocities up to 10 km/sec in the upper chromosphere, and up to 20 km/sec. in the lower chromosphere are present. Microturbulent velocities in the lower chromosphere are about 10 km/sec. Recent ultraviolet observations indicate that the B star in the 32 Cygni system may be within the outer chromosphere of the giant component and its radiation may affect the chromospheric structure more than had previously been suggested.


Radial Velocity Light Curve Turbulent Velocity Giant Component Giant Star 
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  1. Bisiacchi, G., Flora, U., and Hack, M. 1974, Astron. Astrophys. Suppl., 13, 109.Google Scholar
  2. Bridges, J.M., and Kornblith, R.L. 1974, Astrophys. J., 192, 794.CrossRefGoogle Scholar
  3. Cowley, A.P. 1969, Publ. Astron. Soc. Pacific, 81, 297.CrossRefGoogle Scholar
  4. Doherty, L., McNall, J., and Holm, A. 1974, Astrophys. J., 187, 521.CrossRefGoogle Scholar
  5. Foy, R. 1972, Astron. Astrophys., 18, 26.Google Scholar
  6. Goedicke, V. 1939, Publ. Univ. Michigan Obs., 8, 1.Google Scholar
  7. Groth, H.R. 1957, Zeits. Astrophys., 43, 185.Google Scholar
  8. Kawabata, S., and Saito, M. 1975, Astrophys. Space Sci., 36, 273.CrossRefGoogle Scholar
  9. King, R.B., and King, A.S. 1938, Astrophys. J., 87, 24.CrossRefGoogle Scholar
  10. Kitamura, M. 1967, Publ. Ast. Soc. Japan, 19, 194.Google Scholar
  11. Kiyokawa, M., and Kitamura, M. 1973, Ann. Tokyo Astron. Obs. 2nd Ser., 13, 243.Google Scholar
  12. Koch, R.H., Plavec, M., and Wood, F.B. 1970, Publ. Univ. Pennsylvania Astron. Ser., 11, 1.Google Scholar
  13. Magnan, C. 1965, Ann. Astrophys., 28, 512.Google Scholar
  14. May, M., Richter, J., and Wichelmann, J. 1974, Astron. Astrophys. Suppl., 18, 405.Google Scholar
  15. McKellar, A., Aller, L.H., Odgers, G.J., and Richardson, E.H. 1959, Publ. Dom. Astrophys. Obs., 11, 35.Google Scholar
  16. McKellar, A., Wright, K.O., and Francis, J.D. 1957, Publ. Astron. Soc. Pacific, 69, 442.CrossRefGoogle Scholar
  17. Morbey, C.L., Wright, K.O., and Carlberg, R.G. 1975, J. Roy. Astron. Soc. Canada 69, 40.Google Scholar
  18. Peery, B.F. 1966, Astrophys. J., 144, 672.CrossRefGoogle Scholar
  19. Sahade, J., and Wood, F.B. 1978, Interacting Binary Stars, (New York: Pergamon), p. 120.Google Scholar
  20. Saijo, K., and Saito, M. 1977, Publ. Astron. Soc. Japan, 29, 739.Google Scholar
  21. Saito, M. 1965, Publ. Astron. Soc. Japan, 17, 107.Google Scholar
  22. Saito, M. 1970, Publ. Astron. Soc. Japan, 22, 455.Google Scholar
  23. Saito, M. 1973, Astrophys. Space Sci., 22, 133.CrossRefGoogle Scholar
  24. Saito, M., and Sato, H. 1975 Publ. Astron. Soc. Japan, 24, 503.Google Scholar
  25. Stencel, R.E., Kondo, Y., Bernat, A.P., and McCluskey, G.E. 1979, Astrophys. J., (in press).Google Scholar
  26. Underhill, A.B. 1954, Mon. Not. Roy. Astron. Soc., 114, 558.Google Scholar
  27. Unsold, A. 1955, Physik der Sternatmospharen, 2nd Edition, Springer pp. 288, 430.Google Scholar
  28. Van der Held, E.F.M. 1931, Zeits. Astrophys., 70, 508.Google Scholar
  29. Wilson, O.C., and Abt, H.A. 1954, Astrophys. J. Suppl., 1, 1.CrossRefGoogle Scholar
  30. Wilson, O. C. 1960, Stellar Atmospheres, ed., J.L. Greenstein, (Chicago: Univ. Press) p. 436.Google Scholar
  31. Wright, K.O. 1970, Vistas in Astronomy, ed., A. Beer, (Oxford: Pergamon Press), p. 147.Google Scholar
  32. Wright, K.O. 1973, Extended Atmospheres and Circumstellar Matter in Spectroscopic Binary Systems, ed., A.H. Batten, (Dordrecht: Reidel), p. 117.Google Scholar
  33. Wright, K.O. 1977, J. Roy. Astron. Soc. Canada, 71, 152.Google Scholar
  34. Wright, K.O., and Hesse, K.H. 1969, Publ. Dom. Astrophys. Obs., 13, 301.Google Scholar
  35. Wright, K.O., and Odgers, G.J. 1962, J. Roy. Astron. Soc. Canada, 56, 149.Google Scholar

Copyright information

© Springer-Verlag 1980

Authors and Affiliations

  • K. O. Wright
    • 1
  1. 1.Dominion Astrophysical ObservatoryHerzberg Institute of AstrophysicsUSA

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