Other
Scientific paper
Sep 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008dps....40.1102r&link_type=abstract
American Astronomical Society, DPS meeting #40, #11.02; Bulletin of the American Astronomical Society, Vol. 40, p.401
Other
Scientific paper
Radiative timescales at the photospheres of hot Jupiters are expected to be much shorter than those of solar system giants, a first-order difference that directly affects the nature of circulation on these planets. To test its influence on atmospheric flow, we ran tests with the Reading Intermediate General Circulation Model of a shallow 3-D model, using a simple Newtonian relaxation scheme for the radiative forcing. The amount of heat advection from the permanent day to night side depends on the relation between radiative and advective timescales, which is non-linear since shorter radiative timescales lead to faster winds. We find that winds remain subsonic (even for very short radiative times) and that models with shorter radiative timescales show less effective heat advection. We present other trends, including flow pattern and variability. These results illustrate the level of uncertainty present in interpreting data from systems with poorly known radiative timescales.
Menou Kristen
Rauscher Emily
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