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Multi-component MHD model for hydrogen-helium extended envelope of hot Jupiter

Published online by Cambridge University Press:  20 January 2023

Y.G. Gladysheva Open the ORCID record for Y.G. Gladysheva [Opens in a new window] ,
A.G. Zhilkin Open the ORCID record for A.G. Zhilkin [Opens in a new window]  and
D.V. Bisikalo Open the ORCID record for D.V. Bisikalo [Opens in a new window]
Y.G. Gladysheva
Affiliation:
Institute of Astronomy of the Russian Academy of Sciences, 48 Pyatnitskaya st. 119017, Moscow, Russia email: ygladysheva@inasan.ru
A.G. Zhilkin
Affiliation:
Institute of Astronomy of the Russian Academy of Sciences, 48 Pyatnitskaya st. 119017, Moscow, Russia email: ygladysheva@inasan.ru
D.V. Bisikalo
Affiliation:
Institute of Astronomy of the Russian Academy of Sciences, 48 Pyatnitskaya st. 119017, Moscow, Russia email: ygladysheva@inasan.ru
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Abstract

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We describe a numerical model of hot Jupiter extended envelope that interacts with stellar wind. Our model is based on approximation of multi-component magnetic hydrodynamic. The processes of ionization, recombination, dissosiation and chemical reactions in hydrogen-helium envelope are taken into account. In particular, the ionization of neutral hydrogen atoms takes place due to processes of photo-ionization, charge-exchange and thermal collisions. Further, this model is supposed to be used for research on biomarkers’ dynamics in extended envelopes of hot Jupiters.

Keywords

magnetic hydrodynamics (MHD)hot Jupiterschemical reactions
Type
Poster Paper
Information
Proceedings of the International Astronomical Union , Volume 16 , Symposium S362: The Predictive Power of Computational Astrophysics as a Discovery Tool , June 2020 , pp. 167 - 168
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

References

Zhilkin, A.G., & Bisikalo, D.V. 2021, Universe, 7, 422 CrossRefGoogle Scholar
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McElroy, D., Walsh, C., Markwick, A.J., Cordiner, M.A., Smith, K., & Millar, T.J. 2019, A&A, 550, 13 Google Scholar