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- W2104918518 abstract "A periodic variation in the pulse timings of the pulsating hot subdwarf B (sdB) star CS 1246 was recently discovered via the observed minus calculated (O−C) diagram and suggests the presence of a binary companion with an orbital period of two weeks. Fits to this phase variation, when interpreted as orbital reflex motion, imply CS 1246 orbits a barycenter 11 lt-s away with a velocity of 16.6 km s−1. Using the Goodman spectrograph on the SOAR telescope, we decided to confirm this hypothesis by obtaining radial velocity measurements of the system over several months. Our spectra reveal a velocity variation with amplitude, period, and phase in accordance with the O−C diagram predictions. This corroboration demonstrates that the rapid pulsations of hot sdB stars can be adequate clocks for the discovery of binary companions via the pulse timing method." @default.
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- W2104918518 date "2011-07-15" @default.
- W2104918518 modified "2023-09-25" @default.
- W2104918518 title "RADIAL VELOCITY CONFIRMATION OF A BINARY DETECTED FROM PULSE TIMINGS" @default.
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- W2104918518 doi "https://doi.org/10.1088/2041-8205/737/1/l2" @default.
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