Amplitude modulation in $\delta$ Sct stars: statistics from an ensemble study of Kepler targets

Dominic M. Bowman, Donald W. Kurtz, Michel Breger +2

We present the results of a search for amplitude modulation of pulsation mode frequencies in 983 $\delta$ Sct stars, which have effective temperatures between 6400 $\leq T_{\rm eff} \le…