Table 4: Ratios between elemental and iron coronal abundances, relative to the solar photospheric ratios (Grevesse et al. 1992), derived from RGS data, using the APED and CHIANTI databases; errors are at 68% confidence level. For each element, the number of lines included in the EM reconstruction is also shown.
  APED No. lines CHIANTI No. lines
C $\rm0.24_{-0.07}^{+0.22}$ 1 $\rm0.35_{-0.12}^{+0.4}$ 1
O $\rm0.49_{-0.08}^{+0.15}$ 2 $\rm0.41_{-0.06}^{+0.14}$ 3
Ne $\rm0.78_{-0.3}^{+0.13}$ 2 $\rm0.62_{-0.08}^{+0.23}$ 2
Mg $\rm 1.0_{-0.3}^{+0.4}$ 2 $\rm0.82_{-0.14}^{+0.25}$ 2
Si $\rm0.9_{-0.3}^{+0.9}$ 1 $\rm0.85_{-0.27}^{+1.0}$ 1
Fe 1 27 1 17
Ni $\rm 3.5_{-0.7}^{+2.1}$ 6 $\rm 4.6_{-1.0}^{+1.1}$ 4
total lines   41   30


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