Fig. E.1

Eddington ratio (λEdd) as a functionof LX∕L6 of ROSAT type-1 AGNs (gray cross; Toba et al. 2019a), XMM type-1 AGNs (cyan circle; Mateos et al. 2015), a hot DOG (orange square; Ricci et al. 2017), and WISSH quasars (purple asterisk; Martocchia et al. 2017). The red star represents WISEJ0909+0002. The solid green line with the shaded region is a linear relationship between λEdd and LX ∕L6, as reported by Toba et al. (2019a).
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