For each source, the eROSITA count rate three-colour image (left) with red: 0.2–0.7keV, green: 0.7–1.1 keV, and blue: 1.1–5.0keV; the GGM filter image (see Sect. 3.5) applied to the eROSITA count rate (middle left); the MCELS survey three-colour image (middle right) with red: Hα, green: [S II], and blue: [O III]; and the ASKAP radio continuum image (right) in the upper panel. The white circles (ellipses) show the extraction region for determining the count rates (see Sect. 3.3). The cyan (red) contours in the eROSITA three-colour image show the detection at 1σ (3σ) over the background in the energy band 0.2–1.1 keV. The contours in the optical image represent [S II]/Hα > 0.67. The contours in the radio image show the non-thermal emission calculated as described in Sect. 4.2. In the lower panel we show the SFH as calculated in Mazzi et al. (2021) using J – K_s and Y – K_s (see Sect. 5).