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Numerical Simulations of Magnetized Winds of Solar-Like Stars

Research paper by A. A. Vidotto, M. Opher, V. Jatenco-Pereira, T. I. Gombosi

Indexed on: 08 Jan '09Published on: 08 Jan '09Published in: arXiv - Astrophysics - Solar and Stellar Astrophysics



Abstract

We investigate magnetized solar-like stellar winds by means of self-consistent three-dimensional (3D) magnetohydrodynamics (MHD) numerical simulations. We analyze winds with different magnetic field intensities and densities as to explore the dependence on the plasma-beta parameter. By solving the fully ideal 3D MHD equations, we show that the plasma-beta parameter is the crucial parameter in the configuration of the steady-state wind. Therefore, there is a group of magnetized flows that would present the same terminal velocity despite of its thermal and magnetic energy densities, as long as the plasma-beta parameter is the same.