  To date a dozen transiting "Tatooines" or circumbinary planets (CBPs) have
been discovered, by eye, in the data from the Kepler mission; by contrast,
thousands of confirmed circumstellar planets orbiting around single stars have
been detected using automated algorithms. Automated detection of CBPs is
challenging because their transits are strongly aperiodic with irregular
profiles. Here, we describe an efficient and automated technique for detecting
circumbinary planets that transit their binary hosts in Kepler light curves.
Our method accounts for large transit timing and duration variations (TTVs and
TDVs), induced by binary reflex motion, in two ways: 1) We directly correct for
large-scale TTVs and TDVs in the light curves by using Keplerian models to
approximate binary and CBP orbits; and 2) We allow additional aperiodicities on
the corrected light curves by employing the Quasi-periodic Automated Transit
Search algorithm (QATS). We demonstrate that our method dramatically improves
detection significance using simulated data and two previously identified CBP
systems, Kepler-35 and Kepler-64.
