Results 21 to 30 of about 10,374 (205)
Hot-Jupiters and hot-Neptunes: A common origin? [PDF]
Astronomy & Astrophysics, 2005 5 pages, 2 figures, accepted in A&A ...
Baraffe, I. +5 more
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New Clues to Reveal Origins of Hot- and Warm-Jupiter: Mutual Occurrence Rate of Hot Jupiter，Warm Jupiter and Cold Jupiter [PDF]
, 2021 Abstract Many works based on the correlations between the occurrence rate of various giant planets and stellar properties of their hosts have provided clues revealing planetary formation processes. However, few researches have focused on the mutual occurrence rate of different type of planets and their dependency upon the stellar properties ...
Xiangning Su, Hui Zhang, Jilin Zhou
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Inflation of migrated hot Jupiters
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT The observed low densities of gas giant planets with a high equilibrium temperature (hot Jupiters) can be simulated in models when a fraction of the surface radiation is deposited deeper in the interior. Meanwhile, migration theories suggest that hot Jupiters formed further away from their host star and migrated inward.
Mol Lous, M.A.S., Miguel, Y.
openaire +4 more sources
The Astronomical Journal, 2022 We present an estimate of the occurrence rate of hot Jupiters (7 R _⊕ ≤ R _p ≤ 2 R _J , 0.8 ≤ P _b ≤ 10 days) around early-type M dwarfs based on stars observed by the Transiting Exoplanet Survey Satellite (TESS) during its primary mission.
Tianjun Gan +28 more
doaj +1 more source
Absence of a metallicity effect for ultra-short-period planets [PDF]
, 2017 Ultra-short-period (USP) planets are a newly recognized class of planets with periods shorter than one day and radii smaller than about 2 Earth radii.
Cargile, Phillip +9 more
core +3 more sources
The Period Distribution of Hot Jupiters Is Not Dependent on Host Star Metallicity
The Astrophysical Journal Letters, 2023 The probability that a Sun-like star has a close-orbiting giant planet (period ≲1 yr) increases with stellar metallicity. Previous work provided evidence that the period distribution of close-orbiting giant planets is also linked to metallicity, hinting ...
Samuel W. Yee, Joshua N. Winn
doaj +1 more source
The Influence of Host Star Spectral Type on Ultra-Hot Jupiter Atmospheres [PDF]
, 2019 Ultra-hot Jupiters are the most highly irradiated gas giant planets, with equilibrium temperatures from 2000 to over 4000 K. Ultra-hot Jupiters are amenable to characterization due to their high temperatures, inflated radii, and short periods, but their ...
Barman, Travis S., Lothringer, Joshua D.
core +2 more sources
A short-period censor of sub-Jupiter mass exoplanets with low density [PDF]
, 2010 Despite the existence of many short-period hot Jupiters, there is not one hot Neptune with an orbital period less than 2.5 days. Here we discuss a cluster analysis of the currently known 106 transiting exoplanets to investigate a possible explanation for
Adams +14 more
core +2 more sources
Thermosphere and exosphere of hot Jupiters [PDF]
Proceedings of the International Astronomical Union, 2008 AbstractHere we describe the observations and the resulting constraints on the upper atmosphere (thermosphere and exosphere) of hot Jupiters. In particular, observations and theoretical modeling of hot-Jupiter evaporation are described. The observations allowed the discovery that the planet orbiting HD209458 has an extended atmosphere of escaping ...
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The TESS Grand Unified Hot Jupiter Survey. II. Twenty New Giant Planets
The Astrophysical Journal Supplement Series, 2023 NASA’s Transiting Exoplanet Survey Satellite (TESS) mission promises to improve our understanding of hot Jupiters by providing an all-sky, magnitude-limited sample of transiting hot Jupiters suitable for population studies.
Samuel W. Yee +86 more
doaj +1 more source