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Fig. 4


Macro-micro decomposition (MmD) technique applied to the C iv (black) and C iii] (red) emission lines observed on 2006-10-13. Left: fraction of the flux FM non affected by microlensing, Centre: fraction of the line F affected by microlensing, Right: full emission line profile. The intensity of C iii] are multiplied by 2.2 to ease visual comparison between C iv and C iii] profiles. The vertical dashed line indicates the velocity zeropoint corresponding to the systemic redshift.

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