High Resolution Soft X-ray Spectroscopy and the Quest for the Hot (5–10 MK) Plasma in Solar Active Regions

  title={High Resolution Soft X-ray Spectroscopy and the Quest for the Hot (5–10 MK) Plasma in Solar Active Regions},
  author={Giulio del Zanna and Vincenzo Andretta and Peter J. Cargill and Alain Jody Corso and Adrian Daw and Leon Golub and James A. Klimchuk and Helen E. Mason},
  booktitle={Frontiers in Astronomy and Space Sciences},
We discuss the diagnostics available to study the 5–10 MK plasma in the solar corona, which is key to understanding the heating in the cores of solar active regions. We present several simulated spectra, and show that excellent diagnostics are available in the soft X-rays, around 100 Å, as six ionization stages of Fe can simultaneously be observed, and electron densities derived, within a narrow spectral region. As this spectral range is almost unexplored, we present an analysis of available… Expand

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