An optimization algorithm determines the optimal source surface radius for PFSS models by minimizing MSE against PSP radial field data from encounters 1-19 after backmapping, yielding increasing R_ss from solar minimum into cycle 25 ascending phase with improved open flux agreement.
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Statistical analysis shows solar energetic electrons rarely cross the heliospheric current sheet unless the source or spacecraft is close to it.
citing papers explorer
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Optimization Algorithm for Determining the Source Surface Radius Based on Parker Solar Probe in situ Measurements from Encounters 1 to 19
An optimization algorithm determines the optimal source surface radius for PFSS models by minimizing MSE against PSP radial field data from encounters 1-19 after backmapping, yielding increasing R_ss from solar minimum into cycle 25 ascending phase with improved open flux agreement.
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Do Solar Energetic Electrons cross the Heliospheric Current Sheet? - A Statistical Study
Statistical analysis shows solar energetic electrons rarely cross the heliospheric current sheet unless the source or spacecraft is close to it.