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A List of Stars in the β Cephei and SPB Instability Strips

Published online by Cambridge University Press:  12 April 2016

P. Blay  and
J. Fabregat
P. Blay
Affiliation:
University of Valencia, Institute) de Ciencias de los Materiales, Departamento de Astronomíc y Astrofísica, Avda. Dr. Moliner 50, 46100 Burjassot, Spain
J. Fabregat
Affiliation:
University of Valencia, Institute) de Ciencias de los Materiales, Departamento de Astronomíc y Astrofísica, Avda. Dr. Moliner 50, 46100 Burjassot, Spain

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For the purpose of observing β Cephei and SPB stars with optical telescopes on board future space missions, we have developed an automatic photometric search of stars falling inside the β Cephei and SPB instability strips. A list has been compiled which is available upon request from the authors (blay@castor.daa.uv.es;juan@pleione.daa.uv.es).

The boundaries of the instability strips have been defined by observational β – c0 HR diagrams based on Stræmgren photometry (Sterken & Jerzykiewicz 1993 = SK93). The ZAMS has been set as the lower limit of both strips. Low and high temperature limits are set as those given by SK93 and the upper limit is fixed by the photometry β of Cep stars found in the literature. For the SPB stars we have followed the same procedure. We have found the following boundaries: β Cephei: 0.2295c0 + 2.6263 > β > 0.0394c0 + 2.5656; 0.17 > c0 > –0.1; SPB: 2.630 > β > 0.2642co + 2.6207; 0.8 > c0 > 0.17.

Type
Part 6. Variables Close to the Main Sequence
Information
International Astronomical Union Colloquium , Volume 176: The Impact of Large-Scale Surveys on Pulsating Star Research , 2000 , pp. 430
Copyright
Copyright © Astronomical Society of the Pacific 2000

References

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Sterken, C. & Jerzykiewicz, M. 1993, Space Sci. Rev., 62, 95 Google Scholar