X-ray scaling relations recovered from the halo population in the lightcone: with L₅₀₀ − M₅₀₀ in the left panel and L₅₀₀ − kT₅₀₀ in the right panel. The luminosity L₅₀₀ is intended as the IGrM-only emission including Galactic absorption in the 0.1 − 2.4 keV band within R₅₀₀. For reference, also literature values are reported: Lov+15 (Lovisari et al. 2015), Eck+11 (Eckmiller et al. 2011), Arn+10 (Arnaud et al. 2010). The masses and mass-weighted temperature are calculated in the same radius R₅₀₀. Considering the small redshift range, we neglect any evolutionary changes in the scaling.