The multiwavelength properties of red QSOs: Evidence for dusty winds as the origin of QSO reddening

摘要: Fundamental differences in the radio properties of red quasars (QSOs), as compared to blue QSOs, have been recently discovered, positioning them a potential key population evolution galaxies and black holes across cosmic time. To elucidate their nature, we exploited rich compilation photometry spectroscopic data model spectral energy distributions (SEDs) from UV FIR characterise emission-line properties. Following systematic comparison approach, infer AGN accretion, obscuration, host galaxy sample ~1800 QSOs at 0.2 1000 km/s) QSOs. We find that exhibit evidence for high-velocity winds present stronger signature infrared excess, suggesting causal connection between reddening presence hot dust QSO winds. propose dusty nuclear scales are potentially physical ingredient responsible colours well parameter regulation accretion material nucleus.