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Fig. 2


The lg-space residuals in LX for each category with respect to their individual best fits. The symbol representation is the same as in Fig. 1. The errorbars for each subgroup are obtained from summing the uncertainties in the measured and the fitted luminosities in quadrature. The fitted luminosities for a subgroup are obtained through the best-fit LX − Tvir relation of that subgroup.

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