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Updated Spitzer Emission Spectroscopy of Bright Transiting Hot Jupiter HD 189733b

  • Authors: Kamen O. Todorov, Drake Deming, Adam Burrows, and Carl J. Grillmair

Todorov et al. 2014 The Astrophysical Journal 796 100.

  • Provider: AAS Journals

Caption: Figure 7.

Top panel: comparison between the eclipse depth spectrum derived here (filled red circles) with the results from Grillmair et al. (2008, black triangles) and the Charbonneau et al. (2008) and Agol et al. (2010) secondary eclipse photometry (green squares and green crosses, respectively). The size of the uncertainty in the Agol et al. (2010) measurement is indicated in the upper left corner. Bottom panel: comparison between our adopted results (filled red circles) and analyses of our data using a third-order polynomial ramp correction function (black upside-down triangles; Grillmair et al. 2007) and the Charbonneau et al. (2008) logarithm plus quadratic ramp correction function (blue asterisks), discussed in Section 3.2.1. The results based on the ramp functions in Equations (3), (6), and (7) show similar offsets from the results we adopt, and are not shown here for clarity. The choice of ramp function affects the absolute eclipse depths, but not their overall shapes. Consistently with the previous studies, both of the ramp functions used in the two previous studies yield deeper eclipses than the exponential ramp adopted here.

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