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Modeling magnetized star-planet interactions: boundary conditions effects

Published online by Cambridge University Press:  06 January 2014

Antoine Strugarek ,
Allan Sacha Brun ,
Sean P. Matt  and
Victor Reville
Antoine Strugarek
Affiliation:
Département de physique, Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, QC H3C-3J7, Canada email: strugarek@astro.umontreal.ca Laboratoire AIM Paris-Saclay, CEA/Irfu Université Paris-Diderot CNRS/INSU, F-91191Gif-sur-Yvette
Allan Sacha Brun
Affiliation:
Laboratoire AIM Paris-Saclay, CEA/Irfu Université Paris-Diderot CNRS/INSU, F-91191Gif-sur-Yvette
Sean P. Matt
Affiliation:
Department of Physics & Astronomy, University of Exeter, Exeter EX2 4QL, UK
Victor Reville
Affiliation:
Laboratoire AIM Paris-Saclay, CEA/Irfu Université Paris-Diderot CNRS/INSU, F-91191Gif-sur-Yvette
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Abstract

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We model the magnetized interaction between a star and a close-in planet (SPMIs), using global, magnetohydrodynamic numerical simulations. In this proceedings, we study the effects of the numerical boundary conditions at the stellar surface, where the stellar wind is driven, and in the planetary interior. We show that is it possible to design boundary conditions that are adequate to obtain physically realistic, steady-state solutions for cases with both magnetized and unmagnetized planets. This encourages further development of numerical studies, in order to better constrain and undersand SPMIs, as well as their effects on the star-planet rotational evolution.

Keywords

planet-star interactionsstars: windsoutflowsmagnetohydrodynamics (MHD)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S300: Nature of Prominences and their role in Space Weather , June 2013 , pp. 330 - 334
Copyright
Copyright © International Astronomical Union 2013 

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