EUV filter responses to plasma emission for the nonthermal κ-distributions

Details EUV filter responses to plasma emission for the nonthermal κ-distributions EUV filter responses to plasma emission for the nonthermal κ-distributions

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009a%26a...505.1255d&link_type=abstract

Astronomy and Astrophysics, Volume 505, Issue 3, 2009, pp.1255-1264

Astronomy and Astrophysics

Astrophysics

6

Sun: Corona, Hydrodynamics, Sun: Uv Radiation, Stars: Coronae

Scientific paper

The responses to plasma emission of the TRACE EUV filters are computed by integrating their spectral responses over the synthetic spectra obtained from the CHIANTI database. The filter responses to emission are functions of temperature, electron density, and the assumed electron distribution function. It is shown here that, for the nonthermal κ-distributions, the resulting responses to emission are more broadly dependent on T, and their maxima are flatter than for the Maxwellian electron distribution. The positions of the maxima can also be shifted. Filter reponses to T are density-dependent as well. The influence of the nonthermal κ-distributions on the diagnostics of T from the observations in all three EUV filters is discussed.

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