منابع مشابه
Evolution of “51 Peg b-like” Planets
About one-quarter of the extrasolar giant planets discovered so far have orbital distances smaller than 0.1AU. These “51Pegb-like” planets can now be directly characterized, as shown by the planet transiting in front the star HD209458. We review the processes that affect their evolution. We apply our work to the case of HD209458b, whose radius has been recently measured. We argue that its radiu...
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We examine the properties of the atmospheres of extrasolar giant planets at orbital distances smaller than 0.1AU from their stars. We show that these “51Peg b-like” planets are rapidly synchronized by tidal interactions, but that small departures from synchronous rotation can occur because of fluid-dynamical torques within these planets. Previous radiative-transfer and evolution models of such ...
متن کاملThe Evolution of Giant Planets
As a whole this dissertation aims to understand giant planets as an entire class of astronomical objects. Initially we investigate the mechanics and evolutionary effects of phase separation in the deep interiors of giant planets. We present the first models of Saturn and Jupiter to couple their evolution to both a radiativeatmosphere grid and to high-pressure phase diagrams of hydrogen with hel...
متن کاملDynamical Evolution of Planets in Disks Planets in Resonant Orbits
We study the evolution of a system consisting of two protoplanets still embedded in a protoplanetary disk. Results of two different numerical approaches are presented. In the first kind of model the motion of the disk material is followed by fully viscous hydrodynamical simulations, and the planetary motion is determined by N-body calculations including exactly the gravitational potential from ...
متن کاملEvolution of Planets in Disks
The main properties of the observed extrasolar planets are reviewed with respect to their relevance to the formation scenario of planetary systems. Results of numerical computations of embedded planets in viscously evolving disks are presented. Emphasis is given to the accretion and migration process. New calculations on inviscid disks are shown. The second part of the talk concentrates on reso...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2002
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20011624