Transit Timing Variation of Near-Resonance Planetary Pairs. II.
  Confirmation of 30 planets in 15 Multiple Planet Systems
  Following on from Paper I in our series (Xie 2013), we report the
confirmation by Transit Timing Variations (TTVs) of a further 30 planets in 15
multiple planet systems, using the publicly available Kepler light curves
(Q0-Q16). All of these fifteen pairs are near first-order Mean Motion
Resonances (MMR), showing sinusoidal TTVs consistent with theoretically
predicted periods, which demonstrate they are orbiting and interacting in the
same systems. Although individual masses cannot be accurately extracted based
only on TTVs (because of the well known degeneracy between mass and
eccentricity), the measured TTV phases and amplitudes can still place
relatively tight constraints on their mass ratios and upper limits on their
masses, which confirm their planetary nature. Some of these systems (KOI-274,
KOI-285, KOI-370 and KOI-2672) are relatively bright and thus suitable for
further follow-up observations.
