Discovery of Small Ultra-short-period Planets Orbiting KG Dwarfs in Kepler Survey Using GPU Phase Folding and Deep Learning Detection System

Kepler-1409b, as listed in the Kepler catalog, orbits its host star KID 12405333 with a period of 0.76486 days. This transit period has been precisely detected by the GPFC method. In the top panel, a clear transit…