Cool Stars 14 - Submitted Abstract # 28
This version created on 05 October 2006

Infrared Spectra and Light Curves of Hot Jupiters in the Spitzer Era


Jonathan Fortney, NASA Ames Research Center
Mark Marley, NASA Ames Research Center
Didier Saumon, Los Alamos National Laboratory
Curtis Cooper, University of Arizona
Adam Showman, University of Arizona

The Spitzer Space Telescope has allowed observers to detect thermal
flux from the atmospheres of transiting hot Jupiters around the time
of secondary eclipse.  We present model atmospheres of several of
these planets and compare our computed infrared spectra to recent
Spitzer Space Telescope and ground-based infrared observations.
One-dimensional radiative-equilibrium models yield infrared
planet-to-star flux ratios that are in general a good match with the
Spitzer data published to date, but perhaps not to ground-based upper
limits.  We also explore spectra as a function of orbital phase for a
three-dimensional dynamical atmosphere model of planet HD209458b.  The
day-side temperature structure of the dynamical model, and therefore
the resulting spectra, is quite different than other published models.
Observed flux as a function of orbital phase should be very sensitive to
departures from equilibrium CO/CH_4 chemistry.  We also discuss the 
prospects of searches for reflected light from hot Jupiters from the 
ground and from space.

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