Fig. 1.
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Comparison between the absolute fluctuations Δabsolute from Eq. (8) (left) and the relative fluctuations Δrelative from Eq. (9) (right) using the surface brightness data and best fit model image of A2319. For display purposes, the images are filtered by a Gaussian kernel of 7.5″. The successive contours represent the distance to the centre in units of R500.
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