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Nonequilibrium Ionization Analysis of a Coronal Shock Driven by a CME

Waczak, John

Thesis supervisor(s)

Raymond, John; Shen, Chengcai; Prchlik, Jakub

In this study we present a nonequilibrium ionization analysis of a coronal shock driven by a coronal mass ejection (CME) observed on June 13, 2010. Using the Solar Dynamics Observatory’s Atmospheric Imaging Assembly (AIA), observations of the CME were made in the 171, 193, 211, and 335 Å channels with a corresponding spherical shock present in the 193 and 211Å channels. We constrain previously reported pre and post shock electron temperatures of 1.8 and 2.8 MK at various positions along the shock using a fast FORTRAN program to solve the time-dependent ionization equations for abundant elements in the coronal plasma. Future work will use these temperatures and densities with the magnetohydrodynamic jump conditions to derive further information about the shock.

This work is supported by the NSF-REU solar physics program at SAO, grant number AGS- 1560313
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