A Representative Sample of Exoplanetary Secondary Eclipses at 8 Microns

Details A Representative Sample of Exoplanetary Secondary Eclipses at 8 Microns A Representative Sample of Exoplanetary Secondary Eclipses at 8 Microns

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008dps....40.0108n&link_type=abstract

American Astronomical Society, DPS meeting #40, #1.08; Bulletin of the American Astronomical Society, Vol. 40, p.386

Astronomy and Astrophysics

Astronomy

Scientific paper

Eclipses observed with the Spitzer Space Telescope provide the highest S/N direct measurements of a given exoplanet, and thus give access to the largest number of planetary atmospheres of any current observing method. To provide direct constraints on models of exoplanetary atmospheres, we are using Spitzer to measure a representative sample of exoplanetary infrared brightness temperatures. We report measurements of GJ 436b, HAT-P-1b, HD149026b, TrES-2, WASP-1b, and WASP-2b in the 8.0-micron channel. We will discuss the constraints placed on planetary atmospheric models by emerging patterns in a plot of predicted vs. observed brightness temperatures.
These observations are part of the Spitzer Exoplanet Target of Opportunity program, which selects transiting exoplanets for observation in a dedicated block of Spitzer time based on predicted S/N, the quality of parameters not in our control (e.g., system distance), and predicted planetary temperatures. Spitzer is operated by the Jet Propulsion Laboratory, California Institute of Technology, under a contract with NASA, which supported this work.

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