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Looking for Trends in the Group Properties of Pulsating Subdwarf B Stars

Published online by Cambridge University Press:  12 April 2016

M. D. Reed ,
S. D. Kawaler  and
S. J. Kleinman
M. D. Reed
Affiliation:
Iowa State University, Department of Physics and Astronomy, Ames, IA 50011, USA
S. D. Kawaler
Affiliation:
Iowa State University, Department of Physics and Astronomy, Ames, IA 50011, USA
S. J. Kleinman
Affiliation:
Iowa State University, Department of Physics and Astronomy, Ames, IA 50011, USA

Extract

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We examine the pulsation properties for 13 members of the pulsating subdwarf B (sdBV, or EC 14026) class of stars. By looking at the pulsation structure of an entire class of stars, it may be possible to determine the various modes of pulsations (O’Brien 1998, Kleinman 1995). Unfortunately, when we examine the ensemble of pulsation periods in EC 14026 stars, we are only able to discern a simple correlation between pulsation period and gravity, and not any structure that might help with mode identification. So we can only report on the lack of structure in the pulsation periods and present some of the work underway, which we hope will identify modes in the future.

Type
Part 7. Pulsating White Dwarfs and Subdwarfs
Information
International Astronomical Union Colloquium , Volume 176: The Impact of Large-Scale Surveys on Pulsating Star Research , 2000 , pp. 502 - 507
Copyright
Copyright © Astronomical Society of the Pacific 2000

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