KIC 3230227 is a short period ( P \approx 7.0 days ) eclipsing binary with a very eccentric orbit ( e = 0.6 ) .
From combined analysis of radial velocities and Kepler light curves , this system is found to be composed of two A-type stars , with masses of M _ { 1 } = 1.84 \pm 0.18 M _ { \odot } , M _ { 2 } = 1.73 \pm 0.17 M _ { \odot } and radii of R _ { 1 } = 2.01 \pm 0.09 R _ { \odot } , R _ { 2 } = 1.68 \pm 0.08 R _ { \odot } for the primary and secondary , respectively .
In addition to an eclipse , the binary light curve shows a brightening and dimming near periastron , making this a somewhat rare eclipsing heartbeat star system .
After removing the binary light curve model , more than ten pulsational frequencies are present in the Fourier spectrum of the residuals , and most of them are integer multiples of the orbital frequency .
These pulsations are tidally driven , and both the amplitudes and phases are in agreement with predictions from linear tidal theory for l = 2 ,m = -2 prograde modes .