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Population studies of Kepler's multi-planet systems have revealed a surprising degree of structure in their underlying architectures. Information from a detected transiting planet can be combined with a population model to make predictions…

Earth and Planetary Astrophysics · Physics 2021-11-03 Matthias Y. He , Eric B. Ford , Darin Ragozzine

We study the transit timings of 10 exoplanets in order to investigate potential Transit Timing Variations (TTVs) in them. We model their available ground-based light curves, some presented here and others taken from the literature, and…

We analyze data from the Quarter 1-17 Data Release 24 (Q1--Q17 DR24) planet candidate catalog from NASA's Kepler mission, specifically comparing systems with single transiting planets to systems with multiple transiting planets, and…

Earth and Planetary Astrophysics · Physics 2016-11-09 Jason H. Steffen , Jeffrey L. Coughlin

The search for extrasolar planets is strongly motivated by the goal of characterizing how frequent habitable worlds and life may be within the Galaxy. Whilst much effort has been spent on searching for Earth-like planets, large moons may…

Earth and Planetary Astrophysics · Physics 2015-03-19 David M. Kipping

This paper considers whether the population of known transiting exoplanets provides evidence for additional outer planets on inclined orbits, due to the perturbing effect of such planets on the orbits of inner planets. As such, we develop a…

Earth and Planetary Astrophysics · Physics 2017-05-31 Matthew J. Read , Mark C. Wyatt , Amaury H. M. J. Triaud

I present an initial investigation into a new planet detection technique that uses the transit timing of a known, transiting planet. The transits of a solitary planet orbiting a star occur at equally spaced intervals in time. If a second…

Astrophysics · Physics 2007-05-23 Jason H. Steffen

A key component of characterizing multi-planet exosystems is testing the orbital stability based on the observed properties. Such characterization not only tests the validity of how observations are interpreted but can also place additional…

Earth and Planetary Astrophysics · Physics 2016-09-09 Stephen R. Kane

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…

Only a few exoplanets are known to orbit around fast rotating stars. One of them is XO-6b, which orbits an F5V-type star. Shortly after the discovery, we started multicolor photometric and radial-velocity follow-up observations of XO-6b,…

Earth and Planetary Astrophysics · Physics 2020-01-08 Zoltán Garai , Theodor Pribulla , Richard Komžík , Emil Kundra , Ľubomír Hambálek , Gyula M. Szabó

Modern theoretical estimates show that with the help of real equipment we are able to detect large satellites of exoplanets (about the size of the Ganymede), although, numerical attempts of direct exomoon detection were unsuccessful. Lots…

Instrumentation and Methods for Astrophysics · Physics 2017-04-04 K. E. Naydenkin , D. S. Kaparulin

Photometric follow-ups of transiting exoplanets may lead to discoveries of additional, less massive bodies in extrasolar systems. This is possible by detecting and then analysing variations in transit timing of transiting exoplanets. We…

Earth and Planetary Astrophysics · Physics 2015-05-19 G. Maciejewski , D. Dimitrov , R. Neuhaeuser , A. Niedzielski , St. Raetz , Ch. Ginski , Ch. Adam , C. Marka , M. Moualla , M. Mugrauer

Transit Timing Variations (TTVs) can be induced by a range of physical phenomena, including planet-planet interactions, planet-moon interactions, and stellar activity. Recent work has shown that roughly half of moons would induce fast TTVs…

In the coming decades, research in extrasolar planets aims to advance two goals: 1) detecting and characterizing low-mass planets increasingly similar to the Earth, and 2) improving our understanding of planet formation. We present a new…

Astrophysics · Physics 2007-05-23 Jason H. Steffen , B. Scott Gaudi , Eric B. Ford , Eric Agol , Mathew J. Holman

Aims. Hot Jupiters are thought to belong to single-planet systems. Somewhat surprisingly, some hot Jupiters have been reported to exhibit transit timing variations (TTVs). The aim of this paper is to identify the origin of these…

Earth and Planetary Astrophysics · Physics 2015-06-05 R. Szabó , Gy. M. Szabó , G. Dálya , A. E. Simon , G. Hodosán , L. L. Kiss

The Kepler mission discovery of candidate transiting exoplanets (KOIs) enables a plethora of ensemble analysis of the architecture and properties of exoplanetary systems. We compare the observed transit durations of KOIs to a synthetic…

Solar and Stellar Astrophysics · Physics 2016-03-02 Peter Plavchan , Christopher Bilinski , Thayne Currie

It is relatively rare for gas giant planets to have resonant or near-resonant companions, but these systems are particularly useful for constraining planet formation and migration models. In this study, we examine Kepler-1624b, a sub-Saturn…

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,…

Kepler-9 was the first case where transit timing variations have been used to confirm the planets in this system. Following predictions of dramatic TTVs - larger than a week - we re-analyse the system based on the full Kepler data set. We…

Earth and Planetary Astrophysics · Physics 2014-03-12 Stefan Dreizler , Aviv Ofir

We describe a new metric that uses machine learning to determine if a periodic signal found in a photometric time series appears to be shaped like the signature of a transiting exoplanet. This metric uses dimensionality reduction and…

Transiting exoplanets provide access to data to study the mass-radius relation and internal structure of extrasolar planets. Long-period transiting planets allow insight into planetary environments similar to the Solar System where, in…

Earth and Planetary Astrophysics · Physics 2015-05-20 Kaspar von Braun , Stephen R. Kane , Suvrath Mahadevan , Greg Laughlin , Andrew Howard , David R. Ciardi
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