Stacked radial intensity profiles of the hot gas component of the CGM-MASS galaxies. Different panels have the galactocentric radial distance of different galaxies rescaled to kpc (a), (c) and r₂₀₀ (b), (d). The solid line is the best-fit β-function. The dashed and dotted lines show the sky+soft proton background and the 1σ uncertainty. Errors are statistical only. In panel (b), the red dashed curve is the Faerman et al. (2017) model scaled with r₂₀₀ of a MW-sized halo and renormalized to fit the data at r < 0.08r₂₀₀ ≈ 20 kpc. Such a model has significantly flatter X-ray intensity profile at large radii than what is measured for the more massive CGM-MASS galaxies, but such a difference is not visible at r ≲ 0.1r₂₀₀. In panels (c) and (d), NGC 550 has been removed from the stacking because there is an X-ray luminous background cluster Abell 189 projected close to this galaxy (Li et al. 2017). The data used to create this figure are available.