Physics
Scientific paper
Nov 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982soph...81...63s&link_type=abstract
Solar Physics, vol. 81, Nov. 1982, p. 63-68.
Physics
Nonthermal Radiation, Plasma Spectra, Solar Spectra, X Ray Spectra, High Resolution, Line Spectra, Magnesium, Thermal Plasmas
Scientific paper
Siarkowski et al. (1982) have discussed the analysis of the high-resolution Mg XI 'triplet' spectra in terms of thermal models. They have shown that many spectra of the active region McMath 14352 could be explained on the basis of the assumption that the emitting plasma is a multitemperature or a one-temperature plasma. However, there exist a number of spectra for which the thermal interpretation is not satisfactory. In the present investigation, it is attempted to obtain better agreement between calculated and measured fluxes in the six spectral bands A, B, C, D, E, and F as defined by Siarkowski et al. by considering two nonthermal plasma models. It is found that even a slight amount of nonthermal electrons present in a large reservoir of thermal plasma can produce significant fluxes regarding most of the lines usually used for the quantitative analysis of the X-ray spectra.
Bromboszcs G.
Korneev Valeri
Mandelshtam S. L.
Oparin S. N.
Siarkowski Marek
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