Reconstruction of the Coronal Magnetic Field Using the CESE-MHD Method

Details Reconstruction of the Coronal Magnetic Field Using the CESE-MHD Method Reconstruction of the Coronal Magnetic Field Using the CESE-MHD Method

Feb 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011apj...727..101j&link_type=abstract

The Astrophysical Journal, Volume 727, Issue 2, article id. 101 (2011).

Astronomy and Astrophysics

Astronomy

2

Magnetic Fields, Magnetohydrodynamics: Mhd, Methods: Numerical, Sun: Corona

Scientific paper

We present a new implementation of the MHD relaxation method for reconstruction of the nearly force-free coronal magnetic field from a photospheric vector magnetogram. A new numerical MHD scheme is proposed to solve the full MHD equations by using the spacetime conservation-element and solution-element method. The bottom boundary condition is prescribed in a similar way as in the stress-and-relax method, by changing the transverse field incrementally to match the magnetogram, and other boundaries of the computational box are set by the nonreflecting boundary conditions. Applications to the well-known benchmarks for nonlinear force-free-field reconstruction, the Low & Lou force-free equilibria, validate the method and confirm its capability for future practical application, with observed magnetograms as inputs.

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