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Fig. 2.
Incident half line profiles for Mg II h (top) and k (bottom) lines. Line cores (Δν ∼ 0−2 × 1011 Hz) are the average of the blue and red sides of the profile only. Above Δν ∼ 2 × 1011 Hz profiles are averaged and smoothed. Absorption lines in the far wings are removed by interpolating between points in the continuum.
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