Würzburg 2018 – scientific programme

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EP: Fachverband Extraterrestrische Physik

EP 3: Sun and Heliosphere I - Structure (MHD, Corona, TR, SW-acc.-Region)

EP 3.4: Talk

Tuesday, March 20, 2018, 17:30–17:45, BSZ - Pabel HS

An optimization principle with positive-definite pressure and density for reconstructing magnetohydrostatic equilibria in the lower solar atmosphere — •Xiaoshuai Zhu and Thomas Wiegelmann — Max Planck Institute for Solar System Research, Göttingen, Germany

We developed an optimization principle for computing magnetohydrostatic equilibria with gravity from photospheric measurements. A transformation, which ensures a positive pressure and density, is introduced to optimize the timestep of pressure, density and magnetic field. The code is tested by application to linear MHS solution. The results show our code is able to reconstruct the original solution with high accuracy. There are obstacles still to be overcome before the code can be applied to real data.