Exploring the Architecture of Transiting Exoplanetary Systems with High-Precision Photometry by Kento Masuda

Author:Kento Masuda
Language: eng
Format: epub, pdf
ISBN: 9789811084539
Publisher: Springer Singapore

4.4 Joint Analysis of the HAT-P-7 System

In this section and the next, we combine from asteroseismology and from the RM effect to constrain the three-dimensional spin–orbit angle . Since the seismic and are also complementary to those from the RM effect and transit photometry, we reanalyze the RM effect and the whole available Kepler light curves simultaneously, incorporating the constraints on , , and described in the previous sections as the prior knowledge. The method and results are presented in this section for HAT-P-7 and in the next section for Kepler-25.

For the HAT-P-7 system, the combination of asteroseismology and Kepler light curves provides a unique opportunity to tightly constrain the orbital eccentricity of HAT-P-7b, especially because the occultation (secondary eclipse) is clearly detected for this giant and close-in planet. Therefore, we first describe how the transit and occultation light curves constrain the planetary orbit in Sect. 4.4.1, before reporting the joint analysis for in Sect. 4.4.2.

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