Results 11 to 20 of about 16,322 (241)

The transiting exoplanet CoRoT-11b and its peculiar tidal evolution [PDF]

open access: diamondEPJ Web of Conferences, 2011
CoRoT-11b is a fairly massive hot-Jupiter (Mp = 2.33 ± 0.34 MJup ) in a 3 days orbit around a F6 V star with an age of 2 ± 1 Gyr. The relatively high projected rotational velocity of the star (v sin i⋆ = 40 ± 5 km/s) places CoRoT-11 among the most rapidly rotating planet hosting stars discovered so far.
D. Gandolfi, A. F. Lanza, C. Damiani
openalex   +4 more sources

The Origin and Evolution of Saturn, with Exoplanet Perspective [PDF]

open access: green, 2018
36 pages, 9 figures, 3 tables (Table 1 wide)
S. K. Atreya   +5 more
openalex   +5 more sources

Tidal Evolution of Exoplanets [PDF]

open access: green, 2010
Tidal effects arise from differential and inelastic deformation of a planet by a perturbing body. The continuous action of tides modify the rotation of the planet together with its orbit until an equilibrium situation is reached. It is often believed that synchronous motion is the most probable outcome of the tidal evolution process, since synchronous ...
A. C. M. Correia, J. Laskar
openalex   +5 more sources

Colloquium: Physical constraints for the evolution of life on exoplanets [PDF]

open access: greenReviews of Modern Physics, 2019
Since the 1990s over 4000 exoplanets have been discovered: which of them could also develop and harbor life? It is posited that the planet must have liquid water, a surrounding atmosphere, and must be both biocompatible and possess the bioessential elements to be habitable.
Manasvi Lingam, Abraham Loeb
openalex   +4 more sources

Magnetic and tidal interactions in spin evolution of exoplanets [PDF]

open access: bronzeProceedings of the International Astronomical Union, 2008
AbstractThe axis-rotational evolution of exoplanets on close orbits strongly depends on their magnetic and tidal interactions with the parent stars. Impulsive perturbations from a star created by periodical activity may accumulate with time and lead to significant long-term perturbations of the planet spin evolution.
Irina Kitiashvili
openalex   +3 more sources

Tidal evolution of close-in exoplanets in co-orbital configurations [PDF]

open access: greenCelestial Mechanics and Dynamical Astronomy, 2013
In this paper, we study the behavior of a pair of co-orbital planets, both orbiting a central star on the same plane and undergoing tidal interactions. Our goal is to investigate final orbital configurations of the planets, initially involved in the 1/1 mean-motion resonance (MMR), after long-lasting tidal evolution.
Adrián Rodríguez   +2 more
openalex   +6 more sources

EUV influences on exoplanet atmospheric stability and evolution

open access: green, 2019
The planetary effective surface temperature alone is insufficient to characterize exoplanet atmospheres and their stability or evolution. Considering the star-planet system as a whole is necessary, and a critical component of the system is the photoionizing stellar extreme ultraviolet emission (EUV; 100-912 ).
Allison Youngblood   +17 more
openalex   +4 more sources

Magnetic Field Evolution of Hot Exoplanets

open access: goldMonthly Notices of the Royal Astronomical Society
ABSTRACT Numerical simulations have shown that the strength of planetary magnetic fields depends on the convective energy flux emerging from planetary interiors. Here, we model the interior structure of gas giant planets using mesa, to determine the convective energy flux that can drive the generation of magnetic field. This flux is then
K Kilmetis   +3 more
openalex   +4 more sources

True Polar Wander of Lava Worlds

open access: yesThe Astrophysical Journal Letters, 2023
As one of the most detectable types of terrestrial planets, lava worlds are highly prioritized targets for exoplanet atmosphere characterization since their atmospheres may reveal what they are made of and how.
Wanying Kang, Francis Nimmo, Feng Ding
doaj   +1 more source

Evolution of exoplanets and their parent stars [PDF]

open access: yesEAS Publications Series, 2014
Studying exoplanets with their parent stars is crucial to understand their population, formation and history. We review some of the key questions regarding their evolution with particular emphasis on giant gaseous exoplanets orbiting close to solar-type stars.
Guillot, Tristan   +4 more
openaire   +5 more sources

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