Dynamics and Origins of the Near-resonant Kepler Planets
The Astrophysical Journal, 2023 Short-period super-Earths and mini-Neptunes encircle more than ∼50% of Sun-like stars and are relatively amenable to direct observational characterization.
Max Goldberg, Konstantin Batygin
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Transit Timing Variation of XO-3b: Evidence for Tidal Evolution of Hot Jupiter with High Eccentricity [PDF]
Publications of the Astronomical Society of the Pacific, 2021 Observed transit timing variation (TTV) potentially reveals the period decay caused by star-planet tidal interaction which can explain the orbital migration of hot Jupiters. We report the TTV of XO-3b, using TESS observed timings and archival timings. We
F. Yang, Xing Wei
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Degeneracy in the characterization of non-transiting planets from transit timing variations [PDF]
, 2012 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 (MMRs), even a low-mass planet can produce an ...
G. Bou'e +3 more
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The Planetary Science Journal, 2021 We have collected transit times for the TRAPPIST-1 system with the Spitzer Space Telescope over four years. We add to these ground-based, HST, and K2 transit-time measurements, and revisit an N -body dynamical analysis of the seven-planet system using ...
Eric Agol +34 more
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A Simulation of Transit Timing Variation
Journal of Applied Mathematics and Physics, 2019 Exoplanet transit timing variation is a method to find exoplanets. To understand this method better, I wrote a computer program in python to simulate the transit of exoplanets.
Ziyue Zeng
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A transit timing variation observed for the long-period extremely low-density exoplanet HIP 41378 f [PDF]
, 2021 HIP 41378 f is a temperate 9.2 ± 0.1R⊕ planet with period of 542.08 days and an extremely low density of 0.09 ± 0.02g cm−3. It transits the bright star HIP 41378 (V=8.93), making it an exciting target for atmospheric characterization including ...
E. Bryant +49 more
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TOI-199 b: A Well-characterized 100 day Transiting Warm Giant Planet with TTVs Seen from Antarctica
The Astronomical Journal, 2023 We present the spectroscopic confirmation and precise mass measurement of the warm giant planet TOI-199 b. This planet was first identified in TESS photometry and confirmed using ground-based photometry from ASTEP in Antarctica including a full 6.5 hr ...
Melissa J. Hobson +51 more
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Using Transit Timing Observations to Search for Trojans of Transiting Extrasolar Planets [PDF]
, 2007 Theoretical studies predict that Trojans are likely a frequent by-product of planet formation and evolution. We examine the sensitivity of transit timing observations for detecting Trojan companions to transiting extrasolar planets.
E. Ford, M. Holman
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Practical suggestions on detecting exomoons in exoplanet transit light curves [PDF]
Proceedings of the International Astronomical Union, 2010 The number of known transiting exoplanets is rapidly increasing, which has recently inspired significant interest as to whether they can host a detectable moon. Although there has been no such example where the presence of a satellite was proven, several
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Radii, masses, and transit-timing variations of the three-planet system orbiting the naked-eye star TOI-396 [PDF]
Astronomy & AstrophysicsContext. TOI-396 is an F6 V bright naked-eye star (V ≈ 6.4) orbited by three small (Rp ≈ 2 R⊕) transiting planets discovered thanks to space-based photometry from two TESS sectors. The orbital periods of the two innermost planets, namely TOI-396 b and c,
A. Bonfanti +40 more
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