Reconstruction of the Coronal Magnetic Field Using the CESE-MHD Method
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-elem...
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| Veröffentlicht in: | The Astrophysical journal 2011-02, Vol.727 (2), p.101-jQuery1323911527958='48' |
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| container_title | The Astrophysical journal |
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| creator | Jiang, Chaowei Feng, Xueshang Fan, Yuliang Xiang, Changqing |
| description | 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. |
| doi_str_mv | 10.1088/0004-637X/727/2/101 |
| format | Article |
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| subjects | ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ATMOSPHERES BOUNDARY CONDITIONS EQUATIONS FLUID MECHANICS HYDRODYNAMICS MAGNETIC FIELDS MAGNETOHYDRODYNAMICS MECHANICS RELAXATION SOLAR ATMOSPHERE SOLAR CORONA STELLAR ATMOSPHERES STELLAR CORONAE |
| title | Reconstruction of the Coronal Magnetic Field Using the CESE-MHD Method |
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