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相关论文: Prospects for Refining Kepler TTV Masses using TES…

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We fit a dynamical model to Kepler systems that contain four or more transiting planets using the analytic method AnalyticLC, and obtain physical and orbital parameters for 101 planets in 23 systems, of which 95 are of mass significance…

地球与行星天体物理 · 物理学 2023-11-14 Yair Judkovsky , Aviv Ofir , Oded Aharonson

We infer dynamical masses in eight multi-planet systems using transit times measured from Kepler's complete dataset, including short-cadence data where available. Of the eighteen dynamical masses that we infer, ten pass multiple tests for…

The Kepler Space Telescope has discovered thousands of planets via the transit method. The transit timing variations of these planets allows us not only to infer the existence of other planets, transiting or not, but to characterize a…

地球与行星天体物理 · 物理学 2018-10-24 Chris Fox , Paul Wiegert

We confirm 27 planets in 13 planetary systems by showing the existence of statistically significant anti-correlated transit timing variations (TTVs), which demonstrates that the planet candidates are in the same system, and long-term…

We have carried out an extensive study of the possibility of the detection of Earth-mass and super-Earth Trojan planets using transit timing variation method with the Kepler space telescope. We have considered a system consisting of a…

地球与行星天体物理 · 物理学 2015-06-16 Nader Haghighipour , Stephanie Capen , Tobias C. Hinse

A re-purposed Kepler mission could continue the search for nearly Earth-sized planets in very short-period (< 1 day) orbits. Recent surveys of the Kepler data already available have revealed at least a dozen such planetary candidates, and a…

地球与行星天体物理 · 物理学 2013-09-09 Brian Jackson

Homogeneous observations and careful analysis of transit light curves can lead to the identification of transit timing variations (TTVs). TrES-2 is one of few exoplanets, which offer the matchless possibility to combine long-term…

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…

地球与行星天体物理 · 物理学 2015-06-16 Ji-Wei Xie , Yanqin Wu , Yoram Lithwick

We propose a scientific program to complete a census of planets, characterizing their masses, orbital properties, and dynamical histories using continued observations of the Kepler field of view with the Kepler spacecraft in a two reaction…

Transit Timing Variations (TTVs) can provide useful information for systems observed by transit, by putting constraints on the masses and eccentricities of the observed planets, or even constrain the existence of non-transiting companions.…

地球与行星天体物理 · 物理学 2022-06-08 A. Leleu , J. -B. Delisle , R. Mardling , S. Udry , G. Chatel , Y. Alibert , P. Eggenberger

We investigated the discrepancy between planetary mass determination using the transit timing variations (TTVs) and radial velocities (RVs), by analysing the multi-planet system Kepler-9. Despite being the first system characterised with…

We extract Transit Timing Variation (TTV) signals for 12 pairs of transiting planet candidates that are near first-order Mean Motion Resonances (MMR), using publicly available Kepler light curves (Q0-Q14). These pairs show significant…

地球与行星天体物理 · 物理学 2015-06-11 Ji-Wei Xie

We develop and apply methods to extract planet masses and eccentricities from observed transit time variations (TTVs). First, we derive simple analytic expressions for the TTV that include the effects of both first- and second-order…

地球与行星天体物理 · 物理学 2016-09-07 Sam Hadden , Yoram Lithwick

The upcoming TESS mission is expected to find thousands of transiting planets around bright stars, yet for three-quarters of the fields observed the temporal coverage will limit discoveries to planets with orbital periods below 13.7 days.…

天体物理仪器与方法 · 物理学 2017-01-25 David M. Kipping , Christopher Lam

We use PyDynamicaLC, a model using the least number of, and the least correlated, degrees of freedom needed to derive a photodynamical model, to describe some of the smallest -- and lowest TTV (transit timing variations) amplitude -- of the…

地球与行星天体物理 · 物理学 2024-10-16 Aviv Ofir , Gideon Yoffe , Oded Aharonson

Exoplanet Transit Timing Variations (TTVs) caused by gravitational forces between planets can be used to determine planetary masses and orbital parameters. Most of the observed TTVs are small and sinusoidal in time, leading to degeneracies…

地球与行星天体物理 · 物理学 2021-03-31 Yan Liang , Jakob Robnik , Uros Seljak

Transiting exoplanets in multi-planet systems exhibit non-Keplerian orbits as a result of the gravitational influence from companions which can cause the times and durations of transits to vary. The amplitude and periodicity of the transit…

地球与行星天体物理 · 物理学 2019-12-24 Kyle A. Pearson