Results 51 to 60 of about 908,915 (272)

A New Window into Planet Formation and Migration: Refractory-to-Volatile Elemental Ratios in Ultra-hot Jupiters [PDF]

open access: yes, 2020
A primary goal of exoplanet characterization is to use a planet’s current composition to understand how that planet formed. For example, the C/O ratio has long been recognized as carrying important information on the chemistry of volatile species ...
J. Lothringer   +5 more
semanticscholar   +1 more source

Hot-Jupiters and hot-Neptunes: A common origin? [PDF]

open access: yesAstronomy & Astrophysics, 2005
We compare evolutionary models for close-in exoplanets coupling irradiation and evaporation due respectively to the thermal and high energy flux of the parent star with observations of recently discovered new transiting planets. The models provide an overall good agreement with observations, although at the very limit of the quoted error bars of OGLE ...
F. Allard   +6 more
openaire   +4 more sources

The Period Distribution of Hot Jupiters Is Not Dependent on Host Star Metallicity

open access: yesThe 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

Warm Jupiters are less lonely than hot Jupiters: close neighbours [PDF]

open access: yes, 2016
Exploiting the Kepler transit data, we uncover a dramatic distinction in the prevalence of sub-Jovian companions, between systems that contain hot Jupiters (periods inward of 10 days) and those that host warm Jupiters (periods between 10 and 200 days ...
Huang, Chelsea X.   +2 more
core   +3 more sources

From thermal dissociation to condensation in the atmospheres of ultra hot Jupiters: WASP-121b in context [PDF]

open access: yesAstronomy & Astrophysics, 2018
Context. A new class of exoplanets has emerged: the ultra hot Jupiters, the hottest close-in gas giants. The majority of them have weaker-than-expected spectral features in the 1.1−1.7 μm bandpass probed by HST/WFC3 but stronger spectral features at ...
V. Parmentier   +12 more
semanticscholar   +1 more source

A chemical model for the atmosphere of hot Jupiters [PDF]

open access: yesAstronomy & Astrophysics, 2012
20 pages, 10 figures.
Marcelino Agúndez   +8 more
openaire   +3 more sources

Evidence of three mechanisms explaining the radius anomaly of hot Jupiters [PDF]

open access: yesAstronomy & Astrophysics, 2020
Context. The anomalously large radii of hot Jupiters are still not fully understood, and all of the proposed explanations are based on the idea that these close-in giant planets possess hot interiors. Most of the mechanisms proposed have been tested on a
P. Sarkis   +4 more
semanticscholar   +1 more source

Why is it So Hot in Here? Exploring Population Trends in Spitzer Thermal Emission Observations of Hot Jupiters Using Planet-specific, Self-consistent Atmospheric Models [PDF]

open access: yesAstrophysical Journal, 2021
Thermal emission has now been observed from dozens of exoplanet atmospheres, opening the gateway to population-level characterization. Here, we provide theoretical explanations for observed trends in Spitzer IRAC channel 1 (3.6 μm) and channel 2 (4.5 μm)
J. Goyal   +4 more
semanticscholar   +1 more source

The TESS Grand Unified Hot Jupiter Survey. II. Twenty New Giant Planets

open access: yesThe 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

Elliptical instability in hot Jupiter systems [PDF]

open access: yesIcarus, 2013
Icarus (2013) http://dx.doi.org/10.1016/j.icarus.2012.12 ...
Claire Moutou   +6 more
openaire   +5 more sources

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