NONLINEAR FORCE-FREE MAGNETIC FIELD FITTING TO CORONAL LOOPS WITH AND WITHOUT STEREOSCOPY

Reconstruction of Solar Coronal Linear Force-Free Magnetic Field

reconstruction of solar coronal linear force-free magnetic field

Nonlinear force-free coronal magnetic field modeling scheme based on the direct boundary integral formulation

The boundary integral equation (BIE) method was first proposed by Yan and Sakurai [2000], which is used to extrapolate the nonlinear force-free magnetic field in the solar atmosphere. Recently, Yan and Li [2006] improved the BIE method and proposed the direct boundary integral equation (DBIE) formulation, which represents the nonlinear force-free magnetic field by direct integration of the magn...

Nonlinear wave heating of solar coronal loops

Theheating ofmagnetically closed structures (loops) in the solar corona by the resonant absorption of incident waves is studied by means of numerical simulations in the framework of nonlinear resistive magnetohydrodynamics (MHD). It is shown that the dynamics in the resonant layer is indeed very nonlinear for typical coronal parameters. The effect of the nonlinearity on the efficiency of the re...

Magnetic reconnection in kinked coronal loops

The resistive dissipation process triggered by the non linear development of the kink instability in a coronal loop is investigated using a three-dimensional MHD code in cylindrical geometry. An equilibrium flux tube carrying a zero net axial current is considered. The magnetic field lines are locally twisted in the central region and inertially anchored at the two photospheric end-plates. When...