Modeling magnetized star-planet interactions: boundary conditions effects
arXiv:1311.3902 · doi:10.1017/S1743921313011162
Abstract
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 understand SPMIs, as well as their effects on the star-planet rotational evolution.
5 pages, 2 figures, to appear in the proceedings of the IAUS 300 "Nature of prominences and their role in Space Weather"
References in corpus (6)
- PLUTO: a Numerical Code for Computational Astrophysics
- Magnetic Braking Formulation for Sun-Like Stars: Dependence on Dipole Field Strength and Rotation Rate
- Magnetic cycles of the planet-hosting star tauBootis
- Radio emission from exoplanets: the role of the stellar coronal density and magnetic field strength
- On the detectability of star-planet interaction
- Interaction of Close-in Planets with the Magnetosphere of their Host Stars I: Diffusion, Ohmic Dissipation of Time Dependent Field, Planetary Inflation, and Mass Loss