“Size excess” ΔR_e (Eq. (1)) of BAT AGN hosts compared to the median value for comparison galaxies. Top: as a function of AGN bolometric luminosity. Bottom: as a function of the ratio of AGN bolometric luminosity to far-infrared luminosity. Vertical dotted lines mark L_bol/L_FIR for three versions of pure AGN “intrinsic” SEDs: the extended Mor & Netzer (2012) SED, an SED derived by Lani et al. (2017), and a Mullaney et al. (2011) “Hi. Lum.” SED, extended from 6 μm down to 1 μm. A size deficit for the AGN hosts is also observed for L_bol,AGN/L_FIR< 25 (dashed horizontal median line), where the AGN contribution to the FIR should be minor according to these SEDs.