Fig. 17.
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Scaling relation between X-ray temperature (kT) and luminosity in the 0.1 − 2.4 keV band for samples of galaxy groups (LL15; Lovisari et al. 2015) and clusters (LL20; Lovisari et al. 2020). Blue line and shaded region denotes the best-fit relation from LL20 (their Table 4, LX − T, third row). Cyan and pink markers show fits to the secondary diffuse X-ray component viewed in projection on HCG15, as described in the text.
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