Figure 8. Photoionization modeling of kinematic component T 2. The plotted lines represent slab models whose predicted Nion matches the estimated values. Solid lines indicate a measured column density, dotted dashed lines a lower limit on the column density, and dotted lines an upper limit on the column density. The error bars due to the photon noise and the systematic uncertainties in the absorber model are represented as a shaded area for each ion when an estimate is available. The black diamonds mark the two-ionization component model that best fits the estimated Nion, while the black square marks our best single-ionization model.
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