Characteristics of Exoplanets in Transiting Systems HD 189733 and HD 209458: Taking into Account the Four-Parameter Law of Star Darkening Within the Framework of a Three-Dimensional Model of Its Atmosphere

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Resumo

The paper presents an analysis of high-precision satellite light curves of exoplanets HD 189733 b and HD 209458 b. The dependence of the exoplanet radius on the wavelength caused by scattering in the planetary atmosphere is determined using a four-parameter limb darkening law based on a three-dimensional model of the stellar atmosphere. It is shown that when using the same exoplanet system characteristics for all wavelengths, primarily the orbital inclination, as well as when using a four-parameter law with a refined radius of the star, the change in the radius of the exoplanet HD 189733 b with increasing corresponds to the model of an exponential Rayleigh atmosphere with a characteristic height of 380400 km. At the same time, the characteristics of the atmosphere of HD 209458 b largely depend on the adopted eccentricity of the system.

Sobre autores

E. Bekesov

Lomonosov Moscow State University, Sternberg Astronomical Institute

Email: egor03121996@mail.ru
Moscow, Russia

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