Table 4: Ionic concentrations and chemical abundances in Me 2-1. Wavelength in Angstrom for all values of $\lambda $ above 1000, otherwise in $\mu $m.
Ion $\lambda $ I T $N_{{\rm ion}}$/ $N_{{\rm p}}$ ICF $N_{{\rm el.}}$/ $N_{{\rm p}}$
He+ 5875 4.06 12 000 0.024    
He++ 4686 8.77 13 500 0.076 1 0.100
C+ 2325 34. 11 500 2.82(-5)    
C++ 1909 821. 12 200 4.98(-4)    
C+3 1548 1187. 15 000 1.68(-4) 1 7.0(-4)
N+ 6584 9.9 11 500 1.35(-6)    
N++ 1750 19.7 12 600 2.40(-5)    
N+3 1485 29.3 15 500 2.02(-5)    
N+4 1239 25.7 18 000 5.7(-6) 1 5.1(-5)
O+ 3726 23. 11 500 1.17(-5)    
O++ 5007 1422. 13 000 2.49(-4)    
O+3 25.8 929. 17 000 2.48(-4) 1 5.3(-4)
Ne+ 12.8 $\leq$4.7 14 000 $\leq$5.9(-6)    
Ne++ 15.5 61.4 14 000 3.83(-5)    
Ne+3 2424 191. 17 500 3.29(-5)    
Ne+4 24.3 165. 18 000 1.85(-5)    
Ne+5 7.65 2.96 18 500 1.12(-7) 1 9.3(-5)
S+ 6731 2.46 11 000 1.0(-7)    
S++ 6312 1.55 12 000 1.69(-6)    
S++ 9531 31.4 12 000 1.36(-6) 6: 9.1(-6):
Ar++ 7136 9.16 12 500 5.40(-7)    
Ar+3 4740 5.53 14 000 6.9(-7)    
Ar+4 7005 1.9 17 000 1.75(-7) 1.2 1.6(-6)
Cl++ 5538 0.53 12 000 4.5(-8)    
Cl+3 8046 1.19 14 000 6.3(-8) 1.7 1.8(-7)
K+3 6101 0.37 13 000 1.95(-8)    
K+4 4163 0.15 17 000 2.0(-8)    
K+5 6228 0.21 18 000 4.6(-9) 1.1: 5.0(-8):
Mg+3 4.49 17.5 18 000 7.9(-6)    
Mg+4 5.61 15.2 18 000 3.9(-6) 1.7: 2.0(-5):
Si++ 1892 2.4 11 600 3.5(-6)    
Intensities (I) given with respect to H $_{\beta }=100$.


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