Ne/O, Mg/O and Fe/O abundances derived from spectroscopic and SEP analysis
Abstract
The relative abundances Ne/O, Mg/O, and Fe/O derived from 33 Solar Maximum Mission Flat Crystal Spectrometer spectra are compared with those derived from the in situ Solar Energetic Particle analysis of Reames (1995). The spectra were obtained from non-flaring, quasi-stable active regions and include lines of the ions Mg XI (9.17 A˚), Ne IX (13.45 A˚), Fe XVIII (14.22 A˚), Fe XVII (15.25 A˚), Fe XVII (16.78 A˚), and O VIII (18.97 A˚) which were used in this study. With a characteristic temperature determined from the ratio of the Fe XVIII to Fe XVII (16.78 A˚) line fluxes, the abundance ratios are obtained using the fluxes and emissivity functions of lines from these different elements.
- Publication:
-
Advances in Space Research
- Pub Date:
- January 1997
- DOI:
- 10.1016/S0273-1177(97)00486-9
- Bibcode:
- 1997AdSpR..20...87S
- Keywords:
-
- Solar Maximum Mission;
- Neon;
- Oxygen;
- Energetic Particles;
- Solar Spectrometers;
- Metallicity;
- Iron;
- Magnesium;
- Spectrum Analysis;
- Abundance;
- Solar Physics