AAS 203rd Meeting, January 2004
Session 12 Eclipsing Binary Stars
Poster, Monday, January 5, 2004, 9:20am-6:30pm, Grand Hall

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[12.16] A Whole Earth Telescope campaign on the sdB+WD close binary KPD+1930+2752

S. Poindexter, M. D. Reed (Southwest Missouri State University), S. Charpinet (Observatoire Midi-Pyrenees), Whole Earth Telescope Xcov 23 Team

In August and September 2003, the Whole Earth Telescope (WET) collaboration observed the pulsating subdwarf B (EC~14026 class) star KPD~1930+2752. This global, multisite campaign obtained time-series data to examine the pulsation structure of the sdB star. The system is a close binary (orbital period of 2.4 hours) with an sdB primary and an unseen (probably white dwarf) companion. The combined binary mass exceeds 1.5 solar masses and will likely merge within 200 million years. We present a first-look analysis of the WET data.

The author(s) of this abstract have provided an email address for comments about the abstract: sdp212s@smsu.edu

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Bulletin of the American Astronomical Society, 35#5
© 2003. The American Astronomical Soceity.