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Paper: Orbits of Hot Subdwarf Binaries in the Kepler Field
Volume: 452, Fifth Meeting on Hot Subdwarf Stars and Related Objects
Page: 147
Authors: Telting, J.; Ostensen, R.; Oreiro, R.; Reed, M.; Farris, L.; O'Toole, S.; Aerts, C.
Abstract: We present preliminary results from an ongoing spectroscopic survey for binarity in a sample of 15 pulsating and a few non-pulsating sdB stars observed with the Kepler spacecraft. We used the INT, NOT, KP4m, and WHT telescopes to obtain low-resolution spectroscopy of our sample stars, and applied a standard cross-correlation technique to derive radial-velocities. We find clear evidence for binarity in several of the pulsators, some of which were not previously known to be binaries.
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