Relations of the rest-frame X-ray luminosity in the 2–10 keV (left panel) and 0.5–8 keV energy bands (right panel) per SFR vs. sSFR. The green circles mark the GP measurements. Different L_X–SFR relations in the form of Eq. (2) are marked in the left panel (Lehmer et al. 2010; Mineo et al. 2012b) and the right panel (Lehmer et al. 2019, 2022); the shaded regions mark the 1σ scatter. The gray downward pointing arrows indicate the upper limits of GPs with only limiting sensitivities from Chandra (see Sect. 4.1 for a discussion). The arrow size corresponds to the exposure time, with larger arrows indicating longer exposure times. The grayscale represents the source’s off-axis angle from the image center, with lighter shades indicating larger off-axis angles.