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Both direct and indirect methods of exoplanet detection rely upon detailed knowledge of the potential host stars. Such stellar characterization allows for accurate extraction of planetary properties, as well as contributing to our overall…

Earth and Planetary Astrophysics · Physics 2023-07-26 Emilie R. Simpson , Tara Fetherolf , Stephen R. Kane , Joshua Pepper , Teo Mocnik , Paul A. Dalba

Photometric follow-ups of transiting exoplanets (TEPs) 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.…

Earth and Planetary Astrophysics · Physics 2015-05-20 G. Maciejewski , R. Neuhaeuser , St. Raetz , R. Errmann , U. Kramm , T. O. B. Schmidt

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

The Kilodegree Extremely Little Telescope (KELT) has been surveying more than $70\%$ of the celestial sphere for nearly a decade. While the primary science goal of the survey is the discovery of transiting, large-radii planets around bright…

We perform a systematic search for atmospheric variability in short-period gas-giant planets (hot Jupiters) observed by the Kepler mission, by looking for temporal variability of their secondary eclipse depths. This is motivated by a recent…

Earth and Planetary Astrophysics · Physics 2024-03-12 Canis Li , Avi Shporer

Space-based photometric surveys have discovered large numbers of planets transiting other stars, but these observe in a single band-pass and yield only the planet radius, orbital period, and transit duration. Information on the masses,…

Earth and Planetary Astrophysics · Physics 2017-05-03 E. Gaidos , D. Kitzmann , K. Heng

Radial velocity (RV) surveys have detected hundreds of exoplanets through their gravitational interactions with their host stars. Some will be transiting, but most lack sufficient follow-up observations to confidently detect (or rule out)…

A transiting planet invites us to measure its size, mass, orbital parameters, atmospheric composition, and other characteristics. But the invitation can only be accepted if the host star is bright enough for precise measurements of its flux…

Earth and Planetary Astrophysics · Physics 2024-10-18 Joshua N. Winn

Nowadays, transit timing variations (TTVs) are proving to be a very valuable tool in exoplanetary science to detect exoplanets by observing variations in transit times. To study the transit timing variation of the hot Jupiter, TrES-2b, we…

Earth and Planetary Astrophysics · Physics 2024-09-19 Shraddha Biswas , D. Bisht , Ing-Guey Jiang , Devesh P. Sariya , Kaviya Parthasarathy

We consider the potential for the Transiting Exoplanet Survey Satellite (TESS) to detect transit timing variations (TTVs) during both its nominal and extended mission phases. Building on previous estimates of the overall yield of planetary…

Earth and Planetary Astrophysics · Physics 2019-10-02 Sam Hadden , Thomas Barclay , Matthew J. Payne , Matthew J. Holman

In recent years the number of exoplanets has grown considerably. The most successful techniques in these detections are the radial velocity (RV) and planetary transits techniques, the latter significantly advanced by the Kepler, K2 and,…

Earth and Planetary Astrophysics · Physics 2022-09-28 F. V. Lovos , R. F. Díaz , L. A. Nieto

The Transiting Exoplanet Survey Satellite (TESS) is a NASA-sponsored Explorer mission that will perform a wide-field survey for planets that transit bright host stars. Here, we predict the properties of the transiting planets that TESS will…

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

Based on the light an exoplanet blocks from its host star as it passes in front of it during a transit, the mid-transit time can be determined. Periodic variations in mid-transit times can indicate another planet's gravitational influence.…

Earth and Planetary Astrophysics · Physics 2022-09-14 Paige Yeung , Quinn Perian , Peyton Robertson , Michael Fitzgerald , Martin Fowler , Frank Sienkiewicz , Kalée Tock

When an exoplanet passes in front of its host star, the resulting eclipse causes an observable decrease in stellar flux, and when multiple such transits are detected, the orbital period of the exoplanet can be determined. Over the past six…

Earth and Planetary Astrophysics · Physics 2025-05-22 Dillon Bass , Daniel Fabrycky

We examine the ability of the Transiting Exoplanet Survey Satellite (TESS) to detect and improve our understanding of planetary systems in the Kepler field. By modeling the expected transits of all confirmed and candidate planets detected…

Earth and Planetary Astrophysics · Physics 2019-05-29 Callista N. Christ , Benjamin T. Montet , Daniel C. Fabrycky

We analyze a large number of citizen science data and identify eight Hot Jupiter systems that show evidence for deviations from a constant orbital period: HAT-P-19 b, HAT-P-32 b, TrES-1 b, TrES-2 b, TrES-5 b, WASP-4 b, WASP-10 b, and…

Earth and Planetary Astrophysics · Physics 2022-11-04 Simone R. Hagey , Billy Edwards , Aaron C. Boley
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