Two HST spectra taken in 1992 (red line: Z0Z30402T, φ = 0.21, blue line: Z0Z30602T, φ = 0.73) and an IUE spectrum taken in 1991 (green line, sp41784, φ = 0.45) are plotted, showing the C iv resonance doublet of AB 6 in velocity space relative to the blue component at λ1548.
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