The Diagnostics of the kappa-Distributions from EUV Spectra

0354053 - ASÚ 2011 RIV NL eng J - Článek v odborném periodiku
Dzifčáková, Elena - Kulinová, Alena
The Diagnostics of the kappa-Distributions from EUV Spectra.
Solar Physics. Roč. 263, 1-2 (2010), s. 25-41. ISSN 0038-0938. E-ISSN 1573-093X
Grant CEP: GA ČR GA205/09/1705
Grant ostatní: VEGA(SK) 1/0069/08
Výzkumný záměr: CEZ:AV0Z10030501
Klíčová slova: EUV spectra * non-thermal distributions * plasma diagnostics
Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika
Impakt faktor: 3.386, rok: 2010

The EUV lines suitable to diagnose possible kappa-distributions in the solar corona are examined. A set of synthetic spectra for various values of the kappa-parameter, characterizing the non-thermal kappa-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 kappa-distribution. The EUV lines suitable for the diagnostics of the distribution function are proposed and the conditions for their usage are discussed.
Trvalý link: http://hdl.handle.net/11104/0193138