Notes. Spectral modeling of the z = 0.09017 X-ray absorber. The results of the “slab” modeling of Ne IX (λ₀ = 13.447 Å), O VIII (blend at λ₀ ≈ 18.97 Å) and O VII (λ₀ = 21.602 Å) are shown in the three uppermost panels; The rest-frame line equivalent widths of the most important absorption lines are denoted by W, while the σ refers to the statistical detection significance level of the ion as yielded by the slab modeling. The first column reports the results obtained from a simultaneous fit to the individual, co-added data sets, whereas the last 6 columns list the results when these co-added data sets are modeled separately. 1σ upper limits for “slab” column densities are quoted if the line was not detected in individual spectra. The z = 0.09017 CIE modeling results are listed in the bottom panel. The n/a refers to zero effective area around the wavelengths of interest. The RGS2 first-order data was not included in the fits as it misses the data around the wavelengths of all the examined line features. All the quoted uncertainties correspond to 1σ confidence levels.