Mathematics – Logic
Scientific paper
Oct 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf..573k&link_type=abstract
EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.573
Mathematics
Logic
Scientific paper
We present results from our systematic study of generic hot Jupiters on highly eccentric orbits (e = 0.0 - 0.75) using the SPARC/MITgcm, a model that couples a state-of-the-art general circulation model, the MITgcm, with a plane-parallel, twostream, multi-band radiative transfer model developed by Marley & McKay (1999). In our simulations, we vary the eccentricity of the planet over a wide range to assess the role of time-variable heating on the atmospheric circulation, considering both synchronous and pseudo-synchronous rotation. In particular, we compare pseudo-synchronously rotating eccentric planets to those on circular orbits with equal average stellar flux. Keeping average stellar flux constant serves to disentangle the heating effects due to varying orbital position from those caused by circulation of the atmosphere. In each of these cases, we analyze the planets temperature structure, jet streams and waves, and diagnose dynamical mechanisms for their formation. We expand on previous work by focusing on observational implications. For each of these simulations, we will present synthetic full-orbit light curves to determine the extent to which the meteorological properties can be inferred from from lightcurves and spectra; these observations are greatly affected by the geometry of the system as seen from Earth, as well as the position of the planets hot spot as it orbits its parent star. This work is a vital step to understanding what current and upcoming lightcurve data can say about the physical nature of planets on eccentric orbits.
Fortney Jonathan J.
Freedman Richard Stuart
Kataria Tiffany
Lewis Nikole K.
Marley Mark S.
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