Extended Data Fig. 9: L[CII] and LIR properties compared with other populations.
From: A dusty compact object bridging galaxies and quasars at cosmic dawn
We show L[CII]/LIR as a function of LIR (a) and ΣLIR (b). For comparison, we also show observational results of local composite systems of AGN and starburst (black square), dusty starbursts at z ~ 0–7 (orange diamond), blue quasars at z ~ 6–7 (blue square), and red quasars at z ~ 3–5 (magenta square) taken from the literature6,42,48,117,122,128,133,134,170. GNz7q is at the extreme end of the relationship painted by known starbursts and quasars. The LIR values of the blue quasars are calculated by assuming the single modified blackbody (Td = 47 K; βd = 1.6), where the blue bar at the bottom left of the left panel shows a potential error scale with a change of Td by ± 10 K from the assumption. For GNz7q, the error bar is obtained by propagating the 1σ uncertainties of L[CII] and LIR.
