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We report a new subdwarf B (sdB) pulsator, PG1142-037, discovered during thefirst full-length campaign of K2, the two-gyro mission of the Kepler spacetelescope. Fourteen periodicities have been detected between 0.9 and 2.5 hourswith amplitudes below 0.35 ppt. We have been able to associate all of thepulsations with low-degree, ell<=2 modes. Follow-up spectroscopy of PG1142 hasrevealed it to be in a binary with a period of 0.54 days. Phase-folding the K2photometry reveals a two-component variation including both Doppler boostingand ellipsoidal deformation. Perhaps the most surprising and interesting resultis the detection of an ellipsoidal, tidally distorted variable with noindication of rotationally-induced pulsation multiplets. This indicates thatthe rotation period is longer than 45 days, even though the binary period isnear 13 hours.

A pulsation analysis of K2 observations of the subdwarf B star PG1142-037 during Campaign 1: A subsynchronously rotating ellipsoidal variable