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Related papers: A Simplified Photodynamical Model for Planetary Ma…

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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…

Earth and Planetary Astrophysics · Physics 2024-10-16 Aviv Ofir , Gideon Yoffe , 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…

We perform dynamical fits to the Transit Timing Variations (TTVs) of Kepler-419b. The TTVs from 17 Kepler quarters are obtained from Holczer et al (2016, ApJS 225,9). The dynamical fits are performed using the MultiNest Bayesian inference…

Earth and Planetary Astrophysics · Physics 2018-11-14 X. Saad-Olivera , A. Costa de Souza , F. Roig , D. Nesvorny

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

We characterize the radii and masses of the star and planets in the Kepler-59 system, as well as their orbital parameters. The star parameters are determined through a standard spectroscopic analysis, resulting in a mass of $1.359\pm…

Earth and Planetary Astrophysics · Physics 2020-01-08 X. Saad-Olivera , C. F. Martinez , A. Costa de Souza , F. Roig 1 , D. Nesvorný

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

We apply AnalyticLC, an analytic model described in an accompanying paper, to interpret Kepler data of systems that contain two or three transiting planets. We perform tests to verify that the obtained solutions agree with full N-body…

Earth and Planetary Astrophysics · Physics 2022-02-02 Yair Judkovsky , Aviv Ofir , Oded Aharonson

We identify a set of planetary systems observed by Kepler that merit transit timing variation (TTV) analysis given the orbital periods of transiting planets, the uncertainties for their transit times and the number of transits observed…

Earth and Planetary Astrophysics · Physics 2021-05-31 Daniel Jontof-Hutter , Angie Wolfgang , Eric B. Ford , Jack J. Lissauer , Daniel C. Fabrycky , Jason F. Rowe

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

We present an analysis of the transit timing variations (TTVs) in the multi-transiting planetary system around Kepler-51 (KOI-620). This system consists of two confirmed transiting planets, Kepler-51b ($P_{\rm b} = 45.2\,\mathrm{days}$) and…

Earth and Planetary Astrophysics · Physics 2014-02-17 Kento Masuda

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 present and discuss five candidate exoplanetary systems identified with the Kepler spacecraft. These five systems show transits from multiple exoplanet candidates. Should these objects prove to be planetary in nature, then these five…

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…

Earth and Planetary Astrophysics · Physics 2023-11-14 Yair Judkovsky , Aviv Ofir , Oded Aharonson

In this paper we investigate systems previously identified to exhibit transit timing variations (TTVs) in Kepler data, with the goal of predicting the expected improvements to the mass and eccentricity constraints that will arise from…

Earth and Planetary Astrophysics · Physics 2019-03-20 Max Goldberg , Sam Hadden , Matthew J. Payne , Matthew J. Holman

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, more terrestrial, exoplanets remained largely…

Earth and Planetary Astrophysics · Physics 2015-08-06 Vincent Van Eylen , Simon Albrecht

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

In favourable conditions, the density of transiting planets in multiple systems can be determined from photometry data alone. Dynamical information can be extracted from light curves, providing modelling is done self-consistently, i.e.…

Earth and Planetary Astrophysics · Physics 2018-06-06 J. M. Almenara , R. F. Díaz , C. Dorn , X. Bonfils , S. Udry

Kepler has discovered hundreds of systems with multiple transiting exoplanets which hold tremendous potential both individually and collectively for understanding the formation and evolution of planetary systems. Many of these systems…

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

Many discovered multiplanet systems are tightly packed. This implies that wide parameter ranges in masses and orbital elements can be dynamically unstable and ruled out. We present a case study of Kepler-23, a compact three-planet system…

Earth and Planetary Astrophysics · Physics 2020-12-23 Daniel Tamayo , Christian Gilbertson , Daniel Foreman-Mackey
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