Kepler Planet Masses and Eccentricities from TTV Analysis
نویسندگان
چکیده
منابع مشابه
Exoplanet orbital eccentricities derived from LAMOST-Kepler analysis.
The nearly circular (mean eccentricity [Formula: see text]) and coplanar (mean mutual inclination [Formula: see text]) orbits of the solar system planets motivated Kant and Laplace to hypothesize that planets are formed in disks, which has developed into the widely accepted theory of planet formation. The first several hundred extrasolar planets (mostly Jovian) discovered using the radial veloc...
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Doppler planet searches have discovered that giant planets follow orbits with a wide range of orbital eccentricities, revolutionizing theories of planet formation. The discovery of hundreds of exoplanet candidates by NASA’s Kepler mission enables astronomers to characterize the eccentricity distribution of small exoplanets. Measuring the eccentricity of individual planets is only practical in f...
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A transiting planet exhibits sinusoidal transit-time-variations (TTVs) if perturbed by a companion near a mean-motion-resonance (MMR). We search for sinusoidal TTVs in more than 2600 Kepler candidates, using the publicly available Kepler light-curves (Q0-Q12). We find that the TTV fractions rise strikingly with the transit multiplicity. Systems where four or more planets transit enjoy four roug...
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We extract Transit Timing Variation (TTV) signals for pairs of transiting planet candidates that are near first-order Mean Motion Resonances (MMR), using publicly available Kepler lightcurves (Q0-Q9). We are able to solidly confirm the planetary nature of 12 new pairs because their TTV signals exhibit sinusoidal variations at the expected timescale and with reasonable phases. Applying the analy...
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ژورنال
عنوان ژورنال: The Astronomical Journal
سال: 2017
ISSN: 1538-3881
DOI: 10.3847/1538-3881/aa71ef