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Slowly Pulsating B Stars: New Insights from Hipparcos

Published online by Cambridge University Press:  08 February 2017

C. Aerts ,
P. De Cat  and
C. Waelkens
C. Aerts
Affiliation:
Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 B, B-3001 Leuven, Belgium
P. De Cat
Affiliation:
Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 B, B-3001 Leuven, Belgium
C. Waelkens
Affiliation:
Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 B, B-3001 Leuven, Belgium

Abstract

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The photometric experiment on board of Hipparcos has discovered, among other types of variables, a large amount of new Slowly Pulsating B Stars. We have selected the fourteen brightest stars of this sample, together with five previously known Slowly Pulsating B Stars, for long-term spectroscopic and photometric monitoring. The selected stars have spectral types ranging from B 2 up to B 9 and are thus nicely spread across the instability strip. We here present the results of a preliminary analysis of our data and point out that our sample is unique in the sense that it allows us to perform seismology of massive early-type stars.

Type
V. Asteroseismology I
Information
Symposium - International Astronomical Union , Volume 185: New Eyes to See Inside the Sun and Stars , 1998 , pp. 295 - 298
Copyright
Copyright © Kluwer 1998 

References

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Pamyatnykh, A.A., 1997, In A Half Century of Stellar Pulsation Interpretations, PASP Conference Series, in press Google Scholar
Waelkens, C., 1991, A&A 246, 468 Google Scholar
Waelkens, C., Aerts, C., Kestens, E., Grenon, M., Eyer, L., 1997, A&A, submitted Google Scholar