Kepler planet masses and eccentricities from TTV analysis
S Hadden, Y Lithwick - The Astronomical Journal, 2017 - iopscience.iop.org
We conduct a uniform analysis of the transit timing variations (TTVs) of 145 planets from 55
Kepler multiplanet systems to infer planet masses and eccentricities. Eighty of these planets …
Kepler multiplanet systems to infer planet masses and eccentricities. Eighty of these planets …
Densities and eccentricities of 139 Kepler planets from transit time variations
S Hadden, Y Lithwick - The Astrophysical Journal, 2014 - iopscience.iop.org
We extract densities and eccentricities of 139 sub-Jovian planets by analyzing transit time
variations (TTVs) obtained by the Kepler mission through Quarter 12. We partially …
variations (TTVs) obtained by the Kepler mission through Quarter 12. We partially …
Numerical and analytical modeling of transit timing variations
S Hadden, Y Lithwick - The Astrophysical Journal, 2016 - iopscience.iop.org
We develop and apply methods to extract planet masses and eccentricities from observed
transit timing variations (TTVs). First, we derive simple analytic expressions for the TTV that …
transit timing variations (TTVs). First, we derive simple analytic expressions for the TTV that …
Transit timing observations from Kepler. I. Statistical analysis of the first four months
The architectures of multiple planet systems can provide valuable constraints on models of
planet formation, including orbital migration, and excitation of orbital eccentricities and …
planet formation, including orbital migration, and excitation of orbital eccentricities and …
Density and eccentricity of Kepler planets
Y Wu, Y Lithwick - The Astrophysical Journal, 2013 - iopscience.iop.org
We analyze the transit timing variations (TTV) obtained by the Kepler mission for 22 sub-
Jovian planet pairs (19 published, 3 new) that lie close to mean motion resonances. We find …
Jovian planet pairs (19 published, 3 new) that lie close to mean motion resonances. We find …
Transit timing to first order in eccentricity
E Agol, K Deck - The Astrophysical Journal, 2016 - iopscience.iop.org
Characterization of transiting planets with transit timing variations (TTVs) requires
understanding how to translate the observed TTVs into masses and orbital elements of the …
understanding how to translate the observed TTVs into masses and orbital elements of the …
Transit timing observations from Kepler. II. Confirmation of two multiplanet systems via a non-parametric correlation analysis
EB Ford, DC Fabrycky, JH Steffen… - The Astrophysical …, 2012 - iopscience.iop.org
We present a new method for confirming transiting planets based on the combination of
transit timing variations (TTVs) and dynamical stability. Correlated TTVs provide evidence …
transit timing variations (TTVs) and dynamical stability. Correlated TTVs provide evidence …
Eccentricity from transit photometry: small planets in Kepler multi-planet systems have low eccentricities
V Van Eylen, S Albrecht - The Astrophysical Journal, 2015 - iopscience.iop.org
Solar system planets move on almost circular orbits. In strong contrast, many massive gas
giant exoplanets travel on highly elliptical orbits, whereas the shape of the orbits of smaller …
giant exoplanets travel on highly elliptical orbits, whereas the shape of the orbits of smaller …
Secure mass measurements from transit timing: 10 Kepler exoplanets between 3 and 8 M⊕ with diverse densities and incident fluxes
We infer dynamical masses in eight multiplanet systems using transit times measured from
Kepler's complete data set, including short-cadence data where available. Of the 18 …
Kepler's complete data set, including short-cadence data where available. Of the 18 …
Transit timing observations from Kepler. V. Transit timing variation candidates in the first sixteen months from polynomial models
Transit timing variations provide a powerful tool for confirming and characterizing transiting
planets, as well as detecting non-transiting planets. We report the results of an updated …
planets, as well as detecting non-transiting planets. We report the results of an updated …