Asteroseismic Detection of a Massive Unseen Companion to the $δ$ Scuti Star TIC 160582982

We present TIC 160582982, an eccentric $δ$ Scuti binary with a dynamically massive unseen companion. Six coherent high-frequency pressure modes used as pulsation clocks yield a phase-modulation orbit with $P_{\rm orb}=89.29\pm0.19$ d, $e=0.539^{+0.040}_{-0.037}$, and $a_1\sin i/c=145.6^{+3.7}_{-3.4}