Results 21 to 30 of about 2,553 (147)

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

The Frequency of Hot Jupiters in the Galaxy [PDF]

open access: yesEPJ Web of Conferences, 2011
The frequency of Hot Jupiters around Galactic dwarf stars is determined from the results of the SuperLupus transit survey and realistic Monte Carlo simulations of the survey efficiency. We find that for Hot Jupiters with mean radii of 1.1RJ and periods between 1 and 10 days, the frequency around dwarf stars is just 0.16±0.60.2%.
Penny D. Sackett, Daniel Bayliss
openaire   +3 more sources

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

A transition between the hot and the ultra-hot Jupiter atmospheres [PDF]

open access: yesAstronomy & Astrophysics, 2020
A key hypothesis in the field of exoplanet atmospheres is the trend of atmospheric thermal structure with planetary equilibrium temperature. We explore this trend and report here the first statistical detection of a transition in the near-infrared atmospheric emission between hot and ultra-hot Jupiters.
Claire Baxter   +8 more
openaire   +6 more sources

Evaporation of hot jupiters and hot neptunes [PDF]

open access: yesEPJ Web of Conferences, 2011
Among the nearly five hundred extra-solar planets known, almost 30% orbit closer than 0.1 AU from their parent star. We will review the observations and the corresponding models of the evaporation of these ‘hot jupiters’. The observations started with the discovery made with HST that the planet orbiting HD 209458 has an extended atmosphere of escaping ...
openaire   +3 more sources

HOT STARS WITH HOT JUPITERS HAVE HIGH OBLIQUITIES [PDF]

open access: yesThe Astrophysical Journal, 2010
ApJ Letters, in press [6 pages]
Winn, Joshua Nathan   +3 more
openaire   +7 more sources

Thermosphere and exosphere of hot Jupiters [PDF]

open access: yesProceedings 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 ...
openaire   +4 more sources

INFLATING HOT JUPITERS WITH OHMIC DISSIPATION [PDF]

open access: yesThe Astrophysical Journal, 2010
We present a new, magnetohydrodynamic mechanism for inflation of close-in giant extrasolar planets. The idea behind the mechanism is that current, which is induced through interaction of atmospheric winds and the planetary magnetic field, results in significant Ohmic dissipation of energy in the interior.
Batygin, Konstantin, Stevenson, David J.
openaire   +5 more sources

The Atmospheric Circulation of Ultra-hot Jupiters [PDF]

open access: yesThe Astrophysical Journal, 2019
Abstract Recent observations of ultra-hot Jupiters with dayside temperatures in excess of 2500 K have found evidence for new physical processes at play in their atmospheres. In this work, we investigate the effects of the dissociation of molecular hydrogen and recombination of atomic hydrogen on the atmospheric circulation of ultra-hot ...
Xianyu Tan, Thaddeus D. Komacek
openaire   +4 more sources

Superflares and “Hot-Jupiters” [PDF]

open access: yesSymposium - International Astronomical Union, 2004
Schaefer, King & Deliyannis (2000) reported the discovery of powerful stellar flares on single, solar-type stars. The outbursts on these F8-G8 stars were 102–107 times more powerful than the largest solar flares. The observed properties are similar to the magnetic reconnection driven events of RS CVn binaries.
openaire   +1 more source

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