The Diagnostics of the κ-Distributions from EUV Spectra

Details The Diagnostics of the κ-Distributions from EUV Spectra The Diagnostics of the κ-Distributions from EUV Spectra

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010soph..263...25d&link_type=abstract

Solar Physics, Volume 263, Issue 1-2, pp. 25-41

Physics

3

Sun: Euv Spectra, Non-Thermal Distributions, Plasma Diagnostics

Scientific paper

The EUV lines suitable to diagnose possible κ-distributions in the solar corona are examined. A set of synthetic spectra for various values of the κ-parameter, characterizing the non-thermal κ-distributions, electron densities, and the mean energy of the distributions are calculated in the spectral range corresponding to the Hinode/EIS and Coronas-F/SPIRIT detectors. The strong EUV lines of Fe in various degrees of ionization are used to analyze the sensitivity of the line ratios to the shape of the distribution function, electron density, and temperature or the parameter T of the κ-distribution. The EUV lines suitable for the diagnostics of the distribution function are proposed and the conditions for their usage are discussed.

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