Results 11 to 20 of about 10,374 (205)

Hot Stars with Hot Jupiters Have High Obliquities [PDF]

open access: yesThe Astrophysical Journal, 2010
We show that stars with transiting planets for which the stellar obliquity is large are preferentially hot (T_eff > 6250 K). This could explain why small obliquities were observed in the earliest measurements, which focused on relatively cool stars drawn
Anderson   +35 more
core   +6 more sources

Hot Jupiters and Cool Stars [PDF]

open access: yesThe Astrophysical Journal, 2014
Close-in planets are in jeopardy as their host stars evolve off the main sequence to the subgiant and red giant phases. In this paper, we explore the influences of the stellar mass (in the range 1.5--2\Mso ), mass-loss prescription, planet mass (from ...
Livio, Mario   +3 more
core   +3 more sources

Evolution of Ohmically Heated Hot Jupiters [PDF]

open access: yesThe Astrophysical Journal, 2011
We present calculations of thermal evolution of Hot Jupiters with various masses and effective temperatures under Ohmic dissipation. The resulting evolutionary sequences show a clear tendency towards inflated radii for effective temperatures that give ...
Batygin, Konstantin   +2 more
core   +4 more sources

Circulation and Dissipation on Hot Jupiters [PDF]

open access: yesThe Astrophysical Journal, 2010
Many global circulation models predict supersonic zonal winds and large vertical shears in the atmospheres of short-period jovian exoplanets. Using linear analysis and nonlinear local simulations, we investigate hydrodynamic dissipation mechanisms to ...
Arras   +15 more
core   +2 more sources

Hot Jupiters Are Asynchronous Rotators

open access: yesThe Astrophysical Journal Letters
Hot Jupiters are typically assumed to be synchronously rotating, from tidal locking. Their thermally driven atmospheric winds experience Lorentz drag on the planetary magnetic field anchored at depth.
Marek Wazny, Kristen Menou
doaj   +3 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’.
Ehrenreich D.
doaj   +2 more sources

Atmospheric Sulfur Photochemistry on Hot Jupiters [PDF]

open access: yesThe Astrophysical Journal, 2009
We develop a new 1D photochemical kinetics code to address stratospheric chemistry and stratospheric heating in hot Jupiters. Here we address optically active S-containing species and CO2 at 1200 < T < 2000 K.
Fortney, J. J.   +4 more
core   +3 more sources

Secular Chaos and the Production of Hot Jupiters [PDF]

open access: yesThe Astrophysical Journal, 2010
In a planetary system with two or more well-spaced, eccentric, inclined planets, secular interactions may lead to chaos. The innermost planet may gradually become very eccentric and/or inclined, as a result of the secular degrees of freedom drifting ...
Batygin   +37 more
core   +2 more sources

Atmospheric Escape from Hot Jupiters [PDF]

open access: yesAstronomy & Astrophysics, 2004
The extra-solar planet HD209458b has been found to have an extended atmosphere of escaping atomic hydrogen (Vidal-Madjar et al. 2003), suggesting that ``hot Jupiters'' closer to their parent stars could evaporate. Here we estimate the atmospheric escape (
Etangs, A. Lecavelier des   +3 more
core   +3 more sources

HOT JUPITER MAGNETOSPHERES [PDF]

open access: yesThe Astrophysical Journal, 2011
26 pages, 17 figures (5 color), 2 appendices; submitted to ApJ; higher resolution version available at http://www.astro.virginia.edu/~gbt8f/HotJupMag_fullres_astroph ...
Trammell, George B.   +2 more
openaire   +2 more sources

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