Linear, nonadiabatic pulsation calculations for models of upper main sequence and β cephei stars

  • H. Saio
  • J. P. Cox
  • C. J. Hansen
  • B. W. Carroll
2. β Cephei and other Early-Type Variables
Part of the Lecture Notes in Physics book series (LNP, volume 125)


Equations for linear nonadiabatic pulsation and the method of their solution are discussed in some detail. The numerical results presented concern mainly 7 Mδ stellar models in early evolutionary phase. A driving zone at a temperature of 1.5 x 105 K was found to be present for both radial and nonradial modes, but no net pulsational instability was observed. Effects of rotation on pulsation frequencies and on stability are also discussed.


Radiation Pressure Lagrangian Variation Maximum Instability Early Evolutionary Phase Eulerian Variation 
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Copyright information

© Springer-Verlag 1980

Authors and Affiliations

  • H. Saio
    • 1
  • J. P. Cox
    • 1
  • C. J. Hansen
    • 1
  • B. W. Carroll
    • 1
  1. 1.Joint Institute for Laboratory AstrophysicsNational Bureau of Standards and University of ColoradoUSA

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