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Related papers: Correlations between planetary transit timing vari…

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Aims: We present 11 high-precision photometric transit observations of the transiting super-Earth planet GJ1214b. Combining these data with observations from other authors, we investigate the ephemeris for possible signs of transit timing…

While the solar system contains about 20 times more moons than planets, no moon has been confirmed around any of the thousands of extrasolar planets known so far. Tools for an uncomplicated identification of the most promising exomoon…

Earth and Planetary Astrophysics · Physics 2020-07-01 Kai Rodenbeck , René Heller , Laurent Gizon

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

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

The Transit Timing Variation (TTV) technique is a powerful dynamical tool to measure exoplanetary masses by analysing transit light curves. We assessed the transit timing performances of the Ariel Fine Guidance Sensors (FGS1/2) based on the…

Earth and Planetary Astrophysics · Physics 2021-04-28 L. Borsato , V. Nascimbeni , G. Piotto , G. Szabó

Systems of two gravitationally bound exoplanets orbiting a common barycenter outside their physical radii ("binary planets") may result from tidal capture during planet-planet scattering. These objects are expected to form in tight orbits…

Earth and Planetary Astrophysics · Physics 2022-12-19 Joheen Chakraborty , David Kipping

In this paper, the detectability of habitable exomoons orbiting around giant planets in M-dwarf systems using Transit Timing Variations (TTVs) and Transit Timing Durations (TDVs) with Kepler-class photometry is investigated. Light curves of…

Earth and Planetary Astrophysics · Physics 2015-06-15 Supachai Awiphan , Eamonn Kerins

An exomoon will produce transit timing variations (TTVs) upon the parent planet and their undersampled nature causes half of such TTVs to manifest within a frequency range of 2 to 4 cycles, irrespective of exomoon demographics. Here, we…

Earth and Planetary Astrophysics · Physics 2022-12-07 David Kipping , Daniel A. Yahalomi

Exomoons are expected to produce potentially detectable transit timing variations (TTVs) upon their parent planet. Unfortunately, distinguishing moon-induced TTVs from other sources, in particular planet-planet interactions, has severely…

Earth and Planetary Astrophysics · Physics 2020-12-03 David Kipping

Transit timing variations (TTVs) of exoplanets are normally interpreted as the consequence of gravitational interaction with additional bodies in the system. However, TTVs can also be caused by deformations of the system transits by…

Earth and Planetary Astrophysics · Physics 2015-12-23 P. Ioannidis , K. F. Huber , J. H. M. M. Schmitt

The deviations of the mid-transit times of an exoplanet from a linear ephemeris are usually the result of gravitational interactions with other bodies in the system. However, these types of transit timing variations (TTV) can also be…

Earth and Planetary Astrophysics · Physics 2016-10-07 P. Ioannidis , J. H. M. M. Schmitt

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

We report the detection of transit timing variations (TTVs) well in excess of one hour in the Kepler multi-planet candidate system KOI 806. This system exhibits transits consistent with three separate planets -- a Super-Earth, a Jupiter,…

Transit timing variations (TTVs) provide a powerful means to detect and characterise additional bodies in known planetary systems, even when they do not transit their host stars. We investigate the dynamical architecture of the HD 332231…

Earth and Planetary Astrophysics · Physics 2026-04-22 Gracjan Maciejewski

We derive the transit timing variations (TTVs) of two planets near a second order mean motion resonance on nearly circular orbits. We show that the TTVs of each planet are given by sinusoids with a frequency of $j n_2-(j-2)n_1$, where $j…

Earth and Planetary Astrophysics · Physics 2016-05-02 Katherine M. Deck , Eric Agol

The search for life outside of the Solar System should not be restricted to exclusively planetary bodies; large moons of extrasolar planets may also be common habitable environments throughout the Galaxy. Extrasolar moons, or exomoons, may…

Earth and Planetary Astrophysics · Physics 2009-11-30 David M. Kipping , Stephen J. Fossey , Giammarco Campanella , Jean Schneider , Giovanna Tinetti

One of the simplest ways to identify an exoplanetary transit is to phase fold a photometric time series upon a trial period - leading to a coherent stack when using the correct value. Such phase-folded transits have become a standard data…

Earth and Planetary Astrophysics · Physics 2021-09-22 David Kipping

Context: Repeated observations of exoplanet transits allow us to refine the planetary parameters and probe them for any time dependent variations. In particular deviations of the period from a strictly linear ephemeris, transit timing…

Earth and Planetary Astrophysics · Physics 2010-11-05 M. Lendl , C. Afonso , J. Koppenhoefer , N. Nikolov , Th. Henning , M. Swain , J. Greiner

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