Probing the solar plasma through ratio-ratio diagnostic technique - Ne V emission lines

Abstract

We present here Ne V line intensity ratios as a function of electron density (Ne) and temperature (Te). These results are presented in the form of ratio-ratio diagrams, which should in principle allow both Ne and Te to be deduced for the Ne V line emitting region, a non-isothermal and inhomogeneous solar plasma. We also discuss the importance of this investigation to analyse and interpret the spectral data from the coronal diagnostic spectrometer (CDS) on the spacecraft SOHO (solar and heliospheric observatory).