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Slowly Pulsating B Stars

Published online by Cambridge University Press:  15 February 2018

C. Waelkens
C. Waelkens*
Affiliation:
Instituut voor Sterrenkunde KU Leuven, Belgium

Abstract

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We discuss two new slowly pulsating B stars for which it can be convincingly shown that they are multiperiodic variables. The group now contains ten confirmed and likely multiperiodic mid-B stars with periods between 0.7 and 4.4 days. The multiperiodicity and the length of the periods point to g-mode pulsations. The very high order of the modes implies that the modes are excited in the core or in the very outer layers of the star. A recently proposed mechanism, in which both the inner and outer layers intervene, is discussed.

Type
Beyond the Classical Instability Strip
Information
International Astronomical Union Colloquium , Volume 139: New Perspectives on Stellar Pulsation and Pulsating Variable Stars , 1993 , pp. 180 - 181
Copyright
Copyright © Cambridge University Press 1993

References

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