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Paper: An Analysis of Ten Quarters of Kepler Observations of the Subdwarf B Star KIC 3527751
Volume: 481, 6th Meeting on Hot Subdwarf Stars and Related Objects
Page: 183
Authors: Foster, H.; Reed, M.
Abstract: We analyze ten quarters (2.5 years) of Kepler spacecraft observations of the pulsating subdwarf B star KIC 3527751. From these data, we detect 175 frequencies ranging from ∼75 to 775 μHz (0.4 to 3.6 hours). We also detect several short period pulsations ranging from ∼1500 to 5760 μHz (2.9 to 11 minutes). We use two main methods to assign pulsation mode degrees to the periods we detected: asymptotic period spacing relationships and rotationally split multiplets. In addition, relationships between Ledoux constants of different degrees can be used to distinguish modes which have multiplets- mainly between ℓ = 1 and 2 modes. Of the 175 periodicities, we were able to assign ℓ values to 93 frequencies, and m values to 80 frequencies. An interesting consequence of our analysis is that the g–mode multiplets indicate a spin period of 44 days, while the p–mode multiplets indicate a spin period of 16 days.
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