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Mode Selection Mechanism in B-Type Pulsators: Observational Clues

Published online by Cambridge University Press:  12 April 2016

Mikołaj Jerzykiewicz
Mikołaj Jerzykiewicz*
Affiliation:
Wrocław University Observatory, ul. Kopernika 11, 51-622 Wrocław, Poland

Abstract

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Linear nonadiabatic calculations for models of B-type pulsators predict many more unstable modes than actually observed, therefore a mode selection mechanism must operate in these stars. To investigate this problem quantitatively, available data for singly-periodic and multi-periodic β Cephei variables are compared. No clear-cut differences are found. The slight difference in [m/H], noted recently by Daszyńska et al. (2003), may indicate the solution.

Type
Part 4. Early-type stars: B, A and F pulsators
Information
International Astronomical Union Colloquium , Volume 193: Variable Stars in the Local Group , 2004 , pp. 267 - 270
Copyright
Copyright © Astronomical Society of the Pacific 2004

References

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