K2 Systematics Correction ("K2SC")

K2SC is a K2 light curve detrending tool that uses Gaussian processes (GPs) to robustly model the systematics due to the Kepler telescope pointing jitter together with the astrophysical variability. The K2SC-detrended light curves are especially suited for studying variable stars in K2 photometry (by allowing us to remove the position-dependent systematics while keeping time-dependent variability intact), and searches for transiting planets (by allowing us to remove both the systematics and astrophysical variability). The detrended light curves available here consist of three components: position-dependent trend, time-dependent trend, and residual (detrended) flux.