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Cycle to Cycle Irregularities in the Monoperiodic β Cephei Star BW Vulpeculae

Published online by Cambridge University Press:  12 April 2016

D. Garnier ,
N. Nardetto ,
P. Mathias ,
D. Gillet  and
A.B. Fokin
D. Garnier
Affiliation:
Observatoire de la Côte ’'Azur, Nice, France
N. Nardetto
Affiliation:
Observatoire de la Côte ’'Azur, Nice, France
P. Mathias
Affiliation:
Observatoire de la Côte ’'Azur, Nice, France
D. Gillet
Affiliation:
Observatoire de Haute-Provence, St Michel l’Observatoire, France
A.B. Fokin
Affiliation:
Institute for Astronomy, Academy of Sciences, Moscow, Russia

Abstract

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High spectral and time resolution observations show that the monoperiodic β Cephei star BW Vul presents differences in both line profiles and velocities from one cycle to another, which may be due to the consequence of the passage of two strong shock waves.

Type
Part 2.2. B-Type Stars
Information
International Astronomical Union Colloquium , Volume 185: Radial and Nonradial Pulsations as Probes of Stellar Physics , 2002 , pp. 206 - 207
Copyright
Copyright © Astronomical Society of the Pacific 2002

References

Chadid, M. 2000, A&A, 359, 991 Google Scholar
Gillet, D. 1992, A&A, 259, 215 Google Scholar
Mathias, P., Gillet, D., Fokin, A.B., & Cambon, T. 1998, A&A, 339, 525 Google Scholar