Scroll Down  to

KOI's (Blue)  or
K2 Objects (Green)

Exoplanet-Science.com

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 LSP periodicity (353.11 and 352.24 days, respectively) suggests the presence of another unseen (non-transiting) exoplanet in this system.


1st: KOI-3445.01, P = 82.30 days [Plot error bars = ± 16.48 min.]
TTV_maximum: 234.23 ± 25.74 days, Amp_ttv_maximum: 111.22 ± 25.43 min.
TTV_minimum: 410.79 ± 27.34 days, Amp_ttv_minimum: -100.14 ± 25.43 min.
TTV_maximum: 587.34 ± 29.65 days, Amp_ttv_maximum: 111.22 ± 25.43 min.
TTV_minimum: 763.90 ± 32.51 days, Amp_ttv_minimum: -100.14 ± 25.43 min.
TTV_maximum: 940.46 ± 35.80 days, Amp_ttv_maximum: 111.22 ± 25.43 min.
TTV_minimum: 1117.02 ± 39.40 days, Amp_ttv_minimum: -100.14 ± 25.43 min.
TTV_maximum: 1293.57 ± 43.24 days, Amp_ttv_maximum: 111.22 ± 25.43 min.
TTV_minimum: 1470.13 ± 47.26 days, Amp_ttv_minimum: -100.14 ± 25.43 min.
P_ttv: 353.11 ± 9.64 days.
Amp_ttv: 211.36 ± 35.97 minutes.
Lomb-Scargle periodogram, candidate P_ttv: 352.24 days; Power: 5.38; P-value: 0.00408.
Linear ephemeris (this work): Tc = 82.30230624(Tc#) + 92.04083292


26 Oct 2013
Kepler KOI-3445.01 (KIC-11860395) 2-(or more?)-Planet System