Top: LX–T relation for the 313 clusters (red) with their best-fit model (black). LX is measured within the 0.1−2.4 keV energy range. The best-fit models of other studies are displayed as well (dashed lines). The best-fit solution when XMM-Newton temperatures are used is shown as well (solid green). Bottom: 1σ (68.3%) and 3σ (99.7%) confidence levels of the normalization and slope of the LX–T relation as derived using Chandra- or XMM-Newton-converted temperatures for all 313 clusters (purple and green respectively). As shown the best-fit values for the same data can shift by ∼3σ depending on the instrument used.
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