Japan Geoscience Union Meeting 2022

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[E] Poster

P (Space and Planetary Sciences ) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM14] Frontiers in solar physics

Wed. Jun 1, 2022 11:00 AM - 1:00 PM Online Poster Zoom Room (5) (Ch.05)

convener:Takaaki Yokoyama(School of Science, Kyoto University), convener:Shinsuke Imada(Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo), Shin Toriumi(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency), convener:Alphonse Sterling(NASA/MSFC), Chairperson:Shin Toriumi(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency)

11:00 AM - 1:00 PM

[PEM14-P03] NON-EQUILIBRIUM IONIZATION PLASMA DURING LARGE LIMB FLARE OBSERVED BY HINODE

*Shinsuke Imada1 (1.Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo)

Keywords:Sun, Corona, Flare

I have studied plasma heating considering the time-dependent ionization process during a large solar flare on 2017 September 10 observed by Hinode/EIS. The observed ratios between Fe XXIV and Fe XXIII increase along the downstream of the reconnection outflow, and they are consistent with the results of considering the time-dependent ionization effect at a constant electron temperature Te = 25MK. It is also studied that the non-thermal velocity considering the time-dependent ionization process during a large solar flare. The non-thermal velocity, which can be related to the turbulent velocity, increases significantly with the height of the sheet structure associated with magnetic reconnection, even when considering the time-dependent ionization process.