The Thermal Flux of the Extrasolar Planet HD 209458b at 7-14 Microns

Details The Thermal Flux of the Extrasolar Planet HD 209458b at 7-14 Microns The Thermal Flux of the Extrasolar Planet HD 209458b at 7-14 Microns

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20919603d&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #196.03; Bulletin of the American Astronomical Society,

Biology

Scientific paper

We used Spitzer/IRS to measure two secondary eclipses of the extrasolar planet HD 209458b. The primary goal of these observations was to isolate the 7-14 micron spectrum of the planet (Richardson et al., this meeting). However, it is also possible to extract photometry from the spectra, and measure the thermal flux from the planet, averaged over wavelength. Summing the spectra over wavelength, several instrument-related systematic effects are seen. These include a baseline drift, and an oscillation in intensity due to telescope pointing jitter. However, the secondary eclipse of the planet is clearly detected in spite of the instrument systematic effects. We will discuss the eclipse amplitude, and the implications for models of the planet. This work is based on observations made with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology under a contract with NASA. Support for this work was provided by NASA. K. Horning acknowledges support from the Summer Undergraduate Internship program of the Goddard Center for Astrobiology. LJR acknowledges support of the NASA Postdoctoral Program at GSFC.

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