Fig. 3
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Variability properties of quasars in VCV10 sample. The top panels show the 2MASS versus VHS magnitude change in J and K in units-of-measurement errors added in quadrature from the two surveys. The third panel is the histogram of these deviations for J, K, and the average of the two. The bottom panel plots the normalised deviations in the two bands against each other; the dotted line corresponds to the slope of unity.
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