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Transit timing analysis may be an effective method of discovering additional bodies in extrasolar systems which harbour transiting exoplanets. The deviations from the Keplerian motion, caused by mutual gravitational interactions between…

We analyze the deviations of transit times from a linear ephemeris for the Kepler Objects of Interest (KOI) through Quarter six (Q6) of science data. We conduct two statistical tests for all KOIs and a related statistical test for all pairs…

Transit timing variations of Kepler-410Ab were already reported in a few papers. Their semi-amplitude is about 14.5 minutes. In our previous paper, we found that the transit timing variations could be caused by the presence of a stellar…

Following Ford et al. (2011, 2012) and Steffen et al. (2012) we derived the transit timing of 1960 Kepler KOIs using the pre-search data conditioning (PDC) light curves of the first twelve quarters of the Kepler data. For 721 KOIs with…

A large fraction of white dwarfs (WDs) may host planets in their habitable zones. These planets may provide our best chance to detect bio-markers on a transiting exoplanet, thanks to the diminished contrast ratio between the Earth-sized WD…

Astrophysics of Galaxies · Physics 2013-09-03 Mukremin Kilic , Eric Agol , Abraham Loeb , Dan Maoz , Jeffrey A. Munn , Alexandros Gianninas , Paul Canton , Sara D. Barber

The transiting planet WASP-12 b was identified as a potential target for transit timing studies because a departure from a linear ephemeris was reported in the literature. Such deviations could be caused by an additional planet in the…

The Kepler planet candidates are an interesting testbed for planet formation scenarios. We present results from N-body simulations of multi-planetary systems that resemble those observed by Kepler. We add both smooth (Type I/II) and…

Earth and Planetary Astrophysics · Physics 2015-06-11 Hanno Rein

We analyze a sample of multiple-exoplanet systems which contain at least 3 transiting planets detected by the Kepler mission ("Kepler multiples"). We use a generalized Titius-Bode relation to predict the periods of 228 additional planets in…

Earth and Planetary Astrophysics · Physics 2015-06-23 Timothy Bovaird , Charles H. Lineweaver , Steffen K. Jacobsen

Transit Timing Variations (TTVs) are a powerful tool for detecting unseen companions in systems with known transiting exoplanets and for characterizing their masses and orbital properties. Large-scale and homogeneous TTV analyses are a…

Earth and Planetary Astrophysics · Physics 2026-01-14 Luca Naponiello

A planet's orbital orientation relative to an observer's line of sight determines the chord length for a transiting planet, i.e., the projected distance a transiting planet travels across the stellar disc. For a given circular orbit, the…

Earth and Planetary Astrophysics · Physics 2020-04-22 Aaron C. Boley , Christa Van Laerhoven , Agueda Paula Granados Contreras

We announce the discovery of a planetary system with 7 transiting planets around a Kepler target, a current record for transiting systems. Planets b, c, e and f are reported for the first time in this work. Planets d, g and h were…

Earth and Planetary Astrophysics · Physics 2015-06-17 J. Cabrera , Sz. Csizmadia , H. Lehmann , R. Dvorak , D. Gandolfi , H. Rauer , A. Erikson , C. Dreyer , Ph. Eigmueller , A. Hatzes

Transiting planets manifest themselves by a periodic dimming of their host star by a fixed amount. On the other hand, light curves of transiting circumbinary (CB) planets are expected to be neither periodic nor to have a single depth while…

Astrophysics · Physics 2013-08-13 A. Ofir

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

Previous work has demonstrated that the Large Synoptic Survey Telescope (LSST) has the capability to detect transiting planets around main sequence stars in relatively short ($<$ 20 days) periods and using standard algorithms for transit…

Earth and Planetary Astrophysics · Physics 2018-10-01 Michael B. Lund , Joshua A. Pepper , Avi Shporer , Keivan G. Stassun

The Kepler mission is dramatically increasing the number of planets known in multi-planetary systems. Many adjacent planets have orbital period ratios near resonant values, with a tendency to be larger than required for exact first-order…

Earth and Planetary Astrophysics · Physics 2015-06-12 Clement Baruteau , John C. B. Papaloizou

Among the numerous discoveries resulting from the {\it Kepler} mission are a plethora of compact planetary systems that provide deep insights into planet formation theories. The architecture of such compact systems also produces unique…

Earth and Planetary Astrophysics · Physics 2019-07-31 Stephen R. Kane

We present the results of an independent search of all ~200,000 stars observed over the four year Kepler mission (Q1-Q17) for multiplanet systems, using a three-transit minimum detection criteria to search orbital periods up to hundreds of…

Earth and Planetary Astrophysics · Physics 2020-03-11 Michelle Kunimoto , Jaymie M. Matthews , Henry Ngo

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

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

To date a dozen transiting "Tatooines" or circumbinary planets (CBPs) have been discovered, by eye, in the data from the Kepler mission; by contrast, thousands of confirmed circumstellar planets orbiting around single stars have been…

Earth and Planetary Astrophysics · Physics 2019-10-02 Diana Windemuth , Eric Agol , Josh Carter , Eric B. Ford , Nader Haghighipour , Jerome A. Orosz , William F. Welsh