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Related papers: Numerical and Analytical Modelling of Transit Time…

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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 do not have previously reported mass and eccentricity…

Earth and Planetary Astrophysics · Physics 2017-06-28 Sam Hadden , Yoram Lithwick

Most planet pairs in the Kepler data that have measured transit time variations (TTV) are near first-order mean-motion resonances. We derive analytical formulae for their TTV signals. We separate planet eccentricity into free and forced…

Earth and Planetary Astrophysics · Physics 2015-06-05 Yoram Lithwick , Jiwei Xie , Yanqin Wu

Transit timing variations (TTVs) are a powerful tool for characterizing the properties of transiting exoplanets. However, inferring planet properties from the observed timing variations is a challenging task, which is usually addressed by…

Earth and Planetary Astrophysics · Physics 2018-06-26 Itai Linial , Shmuel Gilbaum , Re'em Sari

Characterization of transiting planets with transit timing variations (TTVs) requires understanding how to translate the observed TTVs into masses and orbital elements of the planets. This can be challenging in multi-planet transiting…

Earth and Planetary Astrophysics · Physics 2016-04-28 Eric Agol , Katherine Deck

Transit timing variation (TTV) provides rich information about the mass and orbital properties of exoplanets, which are often obtained by solving an inverse problem via Markov Chain Monte Carlo (MCMC). In this paper, we design a new…

Earth and Planetary Astrophysics · Physics 2024-09-10 Chen Chen , Lingkai Kong , Gongjie Li , Molei Tao

Gravitational interactions between planets in transiting exoplanetary systems lead to variations in the times of transit that are diagnostic of the planetary masses and the dynamical state of the system. Here we show that synodic "chopping"…

Earth and Planetary Astrophysics · Physics 2015-06-23 Katherine M. Deck , Eric Agol

The discovery of young (<800 Myr) transiting planets has provided a new avenue to explore how planets form and evolve over their lifetimes. Mass measurements for these planets would be invaluable, but radial velocity surveys of young…

Earth and Planetary Astrophysics · Physics 2025-12-09 Ana Isabel Lopez Murillo , Andrew W. Mann , Madyson G. Barber , Andrew Vanderburg , Pa Chia Thao , Andrew W. Boyle

Here we describe a story behind the discovery of Kepler-46, which was the first exoplanetary system detected and characterized from a method known as the transit timing variations (TTVs). The TTV method relies on the gravitational…

Earth and Planetary Astrophysics · Physics 2019-07-17 David Nesvorny

We present the results of an extensive study of the detectability of Earth-sized planets and super-Earths in the habitable zones of cool and low-mass stars using transit timing variation method. We have considered a system consisting of a…

Earth and Planetary Astrophysics · Physics 2015-05-28 Nader Haghighipour , Sabrina Kirste

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 circumvent the degeneracies that plague TTV inversion with the…

Earth and Planetary Astrophysics · Physics 2015-06-17 Sam Hadden , Yoram Lithwick

Transit Timing Variations (TTVs) can provide useful information on compact multi-planetary systems observed by transits, by putting constraints on the masses and eccentricities of the observed planets. This is especially helpful when the…

Earth and Planetary Astrophysics · Physics 2024-05-24 A. Leleu , J. -B. Delisle , S. Udry , R. Mardling , M. Turbet , J. A. Egger , Y. Alibert , G. Chatel , P. Eggenberger , M. Stalport

Prospects for expanding the available mass measurements of the Kepler sample are limited. Planet masses have typically been inferred via radial velocity (RV) measurements of the host star or time-series modeling of transit timing variations…

Earth and Planetary Astrophysics · Physics 2022-09-21 Jared C. Siegel , Leslie A. Rogers

The transit timing variation (TTV) method allows the detection of non-transiting planets through their gravitational perturbations. Since TTVs are strongly enhanced in systems close to mean-motion resonances (MMR), even a low mass planet…

Earth and Planetary Astrophysics · Physics 2015-06-03 Gwenaël Boué , Mahmoudreza Oshagh , Marco Montalto , Nuno C. Santos

Both ground and space-based transit observatories are poised to significantly increase the number of known transiting planets and the number of precisely measured transit times. The variation in a planet's transit times may be used to infer…

Earth and Planetary Astrophysics · Physics 2015-05-20 Dimitri Veras , Eric B. Ford , Matthew J. Payne

Transit timing variations (TTV) are considered a tool for constraining the masses of transiting planets in the absence of radial-velocity data. Although theoretical studies have long revealed that TTV mass determinations intrinsically…

Earth and Planetary Astrophysics · Physics 2026-04-13 Sheng Jin , Dong-Hong Wu , Xiao-Ling Xu , Jianghui Ji

Transit timing variations (TTVs) are a valuable tool to determine the masses and orbits of transiting planets in multi-planet systems. TTVs can be readily modeled given knowledge of the interacting planets' orbital configurations and…

Instrumentation and Methods for Astrophysics · Physics 2019-01-30 Noah W. Tuchow , Eric B. Ford , Theodore Papamarkou , Alexey Lindo

Transiting exoplanets in multi-planet systems have non-Keplerian orbits which can cause the times and durations of transits to vary. The theory and observations of transit timing variations (TTV) and transit duration variations (TDV) are…

Earth and Planetary Astrophysics · Physics 2025-05-01 Eric Agol , Daniel Fabrycky

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…

Earth and Planetary Astrophysics · Physics 2015-06-16 Nader Haghighipour , Stephanie Capen , Tobias C. Hinse

The architectures of multiple planet systems can provide valuable constraints on models of planet formation, including orbital migration, and excitation of orbital eccentricities and inclinations. NASA's Kepler mission has identified 1235…

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