Fig. 7
Probability distributions of the best-fit parameters of the c − M − z relation Eq. (9) obtained with LIRA, where the covariance between mass and concentration is taken into account. The thick (thin) lines include the 1-(2-)σ confidence region in two dimensions, here defined as the region within which the value of the probability is larger than exp [ −2.3/2 ] (exp [ −6.17/2 ]) of the maximum.
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