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Fig. 4
Contrast profiles (C) of a time series of coronagraphic images (top curves) and detectability (σ) of the differential images (subtraction of the time series of coronagraphic images to the reference one, bottom curves). Left: timescale evolves from 3 to 30 min, right: timescale evolves from 30 to 165 min.
This figure is made of several images, please see below:
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