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Paper: Asteroseismology of sdB stars with FUSE
Volume: 348, Astrophysics in the Far Ultraviolet: Five Years of Discovery with FUSE
Page: 215
Authors: Kuassivi; Bonanno, A.; Ferlet, R.; Roberts, B.; Caplinger, J.
Abstract: The hot subdwarf B (sdB) stars form an homogeneous group populating an extension of the horizontal branch (HB) in the (Teff–log g) diagram towards temperatures up to 40,000 K. The recent discovery that many of them are multimode pulsators has triggered a large observational and theoretical effort. We discuss the possibility of performing space-based asteroseismology with FUSE, and we demonstrate that periodic luminosity variations are already detectable in archival TTAG data of sdB stars. In particular, we report on the FUSE observation of the pulsator PG 1219+534, which shows the presence of periodic variations consistent with those reported from ground-based observations at 6.9 mHz and 7.8 mHz.
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