Correlation between stellar mass and SMBH mass in observations and simulations. Small light-blue points represent non-BCG simulated galaxies, large black dots represent simulated BCGs. Yellow, green, red, brown, and orange crosses represent the observational data with their error bars taken from McConnell & Ma (2013), Main et al. (2017), Savorgnan et al. (2016), Bogdán et al. (2018), and Gaspari et al. (2019) respectively. The dashed black line is a linear best-fit of the sample of different type of galaxies by McConnell & Ma (2013). See text for details about M_BH and M_⋆ definition and measurement.