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Fig. 11.

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Hydrogen densities and column densities predicted by CLOUDY photoionisation models for the two mini-BAL components. Only models with χ2 < 5 are shown and the sizes of the symbols are inversely scaled with χ2. In addition, models are colour coded according to their ionisation parameters. Both outflow components have low-density and high-density solutions, although the high-density solution would imply extremely thin layers of gas.

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