TTVs are derived from Q1-Q16 Kepler data. x-axes: “Observed Tc” (Mid-Transit Time): EXOFAST’s best-fits from Kepler light flux vs. time data. y-axes: “(O – C)”: difference between Observed Tc and the Calculated Tc from the graphically obtained linear ephemeris. The plots are pictured in the order of orbital periods.
Discussion: The observed sinusoidal TTV and closely-matching Lomb-Scargle periodicity (LSP) for KOI-3014.01 (268.42 and 268.78 days, respectively) suggests the presence of another unseen (non-transiting) exoplanet in this system. Further, the observed sinusoidal fit and additional closely-matching LSP of the RESIDUALS from the above TTV plot (604.99 and 598.53 days, respectively) suggests a second unseen planet.