Results 1 to 10 of about 5,805 (230)
Transit Depth Variations Reveal TOI-216 b to be a Super-puff
The Astronomical Journal, 2023 The planets of the TOI-216 system have been previously observed to exhibit large transit-timing variations, which enabled precise mass characterization of both transiting planets.
Brendan J. McKee, Benjamin T. Montet
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The Advantages of Global Photometric Models in Fitting Transit Variations
The Astronomical Journal, 2023 Estimation of planetary orbital and physical parameters from light-curve data relies heavily on the accurate interpretation of Transit Timing Variation (TTV) measurements.
Yair Judkovsky +2 more
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Constraining the Densities of the Three Kepler-289 Planets with Transit Timing Variations
The Astronomical Journal, 2023 Kepler-289 is a three-planet system containing two sub-Neptunes and one cool giant planet orbiting a young, Sun-like star. All three planets exhibit transit timing variations (TTVs), with both adjacent planet pairs having orbital periods close to the 2:1
Michael Greklek-McKeon +6 more
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TESS Timings of 31 Hot Jupiters with Ephemeris Uncertainties
The Astrophysical Journal Supplement Series, 2023 A precise transit ephemeris serves as the premise for follow-up exoplanet observations. We compare TESS Object of Interest (TOI) transit timings of 262 hot Jupiters with the archival ephemeris and find 31 of them having TOI timing offsets, among which ...
Su-Su Shan +10 more
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The TESS-Keck Survey. XV. Precise Properties of 108 TESS Planets and Their Host Stars
The Astronomical Journal, 2023 We present the stellar and planetary properties for 85 TESS Objects of Interest (TOIs) hosting 108 planet candidates that compose the TESS-Keck Survey (TKS) sample.
Mason G. MacDougall +40 more
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Metrics for Optimizing Searches for Tidally Decaying Exoplanets
The Astronomical Journal, 2023 Tidal interactions between short-period exoplanets and their host stars drive orbital decay and have likely led to engulfment of planets by their stars.
Brian Jackson +2 more
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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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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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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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The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada
Population Ecology, EarlyView.We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
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