3D Magneto-hydrodynamic simulations of Parker instability with cosmic rays
نویسندگان
چکیده
منابع مشابه
Nonlinear Parker Instability with the Effect of Cosmic-ray Diffusion
We present the results of linear analysis and two-dimensional local magnetohydrodynamic (MHD) simulations of the Parker instability, including the effects of cosmic rays (CRs), in magnetized gas disks (galactic disks). As an unperturbed state for both the linear analysis and the MHD simulations, we adopted an equilibrium model of a magnetized two-temperature layered disk with constant gravitati...
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The Parker instability, which has been considered as a process governing the structure of the interstellar medium, is induced by the buoyancy of magnetic field and cosmic rays. In previous studies, while the magnetic field has been fully incorporated in the context of isothermal magnetohydrodynamics, cosmic rays have been normally treated with the simplifying assumption of infinite diffusion al...
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Parker instability leads to the formation of tangential discontinuities in a magnetic field and subsequent magnetic reconnection due to a numerical and/or an explicit resistivity. In this paper we investigate the role of the uniform, localized and numerical resistivity on the diffusion of magnetic field lines during the growth phase of Parker instability modes. We propose a new method to quanti...
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ژورنال
عنوان ژورنال: Computer Physics Communications
سال: 2011
ISSN: 0010-4655
DOI: 10.1016/j.cpc.2010.04.019