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

封面

如何引用文章

全文:

开放存取 开放存取
受限制的访问 ##reader.subscriptionAccessGranted##
受限制的访问 订阅或者付费存取

详细

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.

作者简介

E. Bekesov

Lomonosov Moscow State University, Sternberg Astronomical Institute

Email: egor03121996@mail.ru
Moscow, Russia

参考

  1. М.К. Абубекеров, Н.Ю. Гостев, А.М. Черепащук, Астрон. журн. 88(12), 1139 (2011).
  2. G.G. Valyavin, D.R. Gadelshin, A.F. Valeev, T.E. Burlakova, et al., Astrophys. Bull. 73(2), 225 (2018).
  3. Е.В. Бекесов, А.А. Белинский, С.Б. Попов, Астрон. журн. 98(12), 1043 (2021).
  4. E.V. Bekesov, K.A. Lyzenko, A.M. Cherepashchuk, A.A. Belinsky, N.A. Maslennikova, and A.M. Tatarnikov, Astrophys. Bull. 80(1), 72 (2025).
  5. Е.В. Бекесов, Астрон. журн. 101(8), 715 (2024).
  6. F. Grupp, Astron. and Astrophys. 420, 289 (2004).
  7. M. Steааen, R. Cayrel, P. Bonifacio, H.-G. Ludwig, and E. Caffau, Proc. IAU Symp. No 265, Chemical Abundances in the Universe: Connecting First Stars to Planets, edited by K. Cunha, M. Spite, and B. Barbuy, p. 119 (2009).
  8. W. Hayek, D. Sing, F. Pont, and M. Asplund, Astron. and Astrophys. 539, id. A102 (2012).
  9. F. Pont, R.L. Gilliland, C. Moutou, D. Charbonneau, et al., Astron. and Astrophys. 476(3), 1347 (2007).
  10. F. Pont, H. Knutson, R. L. Gilliland, C. Moutou, and D. Charbonneau, Monthly Not. Roy. Astron. Soc. 385(1), 109 (2008).
  11. H.A. Knutson, D. Charbonneau, L. Allen, A. Burrows, and S.T. Megeath, 673(1), 526 (2008).
  12. D. Alp and B.-O. Demory, Astron. and Astrophys. 609, id. A90, (2018).
  13. A. Claret and S. Bloemen, Astron. and Astrophys. 529, id. A75 (2011).
  14. J.J. Fortney, Monthly Not. Roy. Astron. Soc. 364(2), 649 (2005).
  15. A. Lecavelier Des Etangs, F. Pont, A. Vidal-Madjar, and D. Sing, Astron. and Astrophys. 481(2), L83 (2008).
  16. D.K. Sing, J.J. Fortney, N. Nikolov, H.R. Wakeford, et al., Nature. 529(7584), 59 (2016).
  17. B. Addison, D.J. Wright, R.A. Wittenmyer, J. Horner, et al., Publ. Astron. Soc. Pacific. 131(1005), id. 115003 (2019).
  18. J. Southworth, Monthly Not. Roy. Astron. Soc. 408(3), 1689 (2010).

补充文件

附件文件
动作
1. JATS XML
下载

版权所有 © Russian Academy of Sciences, 2025