On the line ratio diagnostics for NeV, MgV, SiVII and Mg VII solar ions

Details On the line ratio diagnostics for NeV, MgV, SiVII and Mg VII solar ions On the line ratio diagnostics for NeV, MgV, SiVII and Mg VII solar ions

Jan 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997adspr..20.2271d&link_type=abstract

Advances in Space Research, Volume 20, Issue 12, p. 2271-2274.

Physics

1

Scientific paper

We present NeV/MgV and MgVII/SiVII theoretical line intensity ratios as a function of electron density and temperature for physical conditions within the solar chromosphere-corona transition region. The electron pressure within the emission regions has been assumed to be a constant parameter. These line intensity ratios in addition could be useful for estimating relative element abundances Ne/Mg and Mg/Si. Line intensities of these ions have been computed using a model solar atmosphere and these have been compared with the available observed values for the quiet -Sun conditions. The analysis suggests the need for observations at higher spectral resolution. The successful launch of the SOHO satellite recently should provide such spectra.

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