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Table 2

Measured ionic column densities Ni,obs from the 900 ks Chandra spectrum of NGC 3783 with upper and lower limits of the uncertainty, and , respectively.

Ion N i,obs

Ne VII 6.0 6.8 5.2
Ne VIII 23.0 25.3 20.7
Ne IX 18.0 19.8 16.2
Ne X 45.0 49.5 40.5
Fe IV 0.5 3.7 0.2
Fe V 1.0 1.4 0.0
Fe VI 1.5 1.7 0.0
Fe VII 2.0 2.2 0.0
Fe VIII 3.0 3.3 1.3
Fe IX 4.0 4.7 1.0
Fe X 5.5 6.1 3.3
Fe XI 3.0 3.6 2.6
Fe XII 2.3 2.5 0.5
Fe XIII 1.2 1.3 0.0
Fe XIV 1.1 1.3 0.8
Fe XV 0.5 0.6 0.2
Fe XVI 1.6 1.8 0.3
Fe XVII 3.0 9.0 2.7
Fe XVIII 10.0 12.6 9.0
Fe XIX 12.0 16.2 10.8
Fe XX 11.0 14.0 9.9
Fe XXI 17.0 18.7 7.1
Fe XXII 12.0 13.2 9.4
Fe XXIII 25.0 27.5 5.0
Fe XXIV 25.0 27.5 4.0
Fe XXV 15.0 45.0 4.0
Fe XXVI 5.0 10.0 0.5

Notes. All column densities are given in units of 1016 cm-2.

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