EUV line ratios from MgVII and SiIX

Details EUV line ratios from MgVII and SiIX EUV line ratios from MgVII and SiIX

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993soph..146..397d&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 146, no. 2, p. 397-400.

Physics

4

Extreme Ultraviolet Radiation, Line Spectra, Magnesium, Metal Ions, Silicon, Solar Flares, Solar Spectra, Ultraviolet Spectra, Electron Density (Concentration), Electron Transitions, Ion Charge, Optical Thickness, Solar Activity Effects

Scientific paper

The EUV line intensity ratios R1 and R2 were computed for MgVII and SiIX for both flares and active regions, using the most appropriate atomic data, and were compared with the earlier results of Mason and Bhatia (1978) and Keenan et al. (1986). It is found that the electron density derived from the observed values in case of solar flares is higher than that in case of active regions and that densities derived from SiIX are greater than those from MgVII.

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