Results 31 to 40 of about 624,657 (195)
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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NGTS-8b and NGTS-9b: two non-inflated hot-Jupiters
, 2020 We report the discovery, by the Next Generation Transit Survey (NGTS), of two hot-Jupiters NGTS-8b and NGTS-9b. These orbit a V = 13.68 K0V star (Teff = 5241 +/- 50 K) with a period of 2.49970 days, and a V = 12.80 F8V star (Teff = 6330 +/- 130 K) in 4 ...
Alexander Chaushev (7751315) +37 more
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OHMIC DISSIPATION IN THE ATMOSPHERES OF HOT JUPITERS [PDF]
The Astrophysical Journal, 2010 Hot Jupiter atmospheres exhibit fast, weakly-ionized winds. The interaction of these winds with the planetary magnetic field generates drag on the winds and leads to ohmic dissipation of the induced electric currents. We study the magnitude of ohmic dissipation in representative, three-dimensional atmospheric circulation models of the hot Jupiter HD ...
Perna, Rosalba +2 more
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EVOLUTION OF OHMICALLY HEATED HOT JUPITERS [PDF]
The 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 rise to significant ionization of alkali metals in the atmosphere, compatible with the trend of the ...
Batygin, Konstantin +2 more
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ON THE FORMATION OF HOT JUPITERS IN STELLAR BINARIES [PDF]
The Astrophysical Journal, 2012 We study the production of Hot Jupiters (HJs) in stellar binaries. We show that the "eccentric Kozai-Lidov" (EKL) mechanism can play a key role in the dynamical evolution of a star-planet-star triple system. We run a large set of Monte Carlo simulations including the secular evolution of the orbits, general relativistic precession, and tides, and we ...
Naoz, Smadar +2 more
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Radiative equilibrium models of “hot Jupiters” [PDF]
Symposium - International Astronomical Union, 2004 We present an extension of our equilibrium model, initially applied to 51 Peg b (Goukenleuque et al. 2000), to other irradiated extrasolar planets with different orbital distances (up to 1 AU). The model yields the mean atmospheric thermal structure and predicts the reflected spectral flux as well as the thermal flux emerging from such planets, in the ...
Goukenleuque, Cédric +2 more
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Ohmic dissipation in hot Jupiters [PDF]
, 2011 We present an isolated analytical model for the ohmic heating in the interior of hot jupiters, treating the wind zone as a parameterized boundary condition. Under a conserved estimation of the strength of induced field and the assumption of an isothermal-
Huang, Chelsea (Xu), Cumming, Andrew
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The Frequency of Hot Jupiters in the Galaxy
EPJ 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.
Sackett P. D., Bayliss D. D. R.
doaj +1 more source
Tidal oscillations of rotating hot Jupiters [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT We calculate small amplitude gravitational and thermal tides of uniformly rotating hot Jupiters composed of a nearly isentropic convective core and a geometrically thin radiative envelope. We treat the fluid in the convective core as a viscous fluid and solve linearized Navier–Stokes equations to obtain tidal responses of the ...
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ATMOSPHERIC SULFUR PHOTOCHEMISTRY ON HOT JUPITERS [PDF]
The 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. HS (mercapto) and S2 are highly reactive species that are generated photochemically and thermochemically from H2S with peak abundances ...
Zahnle, K. +4 more
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