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Paper: Metal-enriched Outflows and Dusty Starburst in the Type II Quasar Q 1321+058
Volume: 373, The Central Engine of Active Galactic Nuclei
Page: 331
Authors: Wang, T.-G.; Zhou, H.; Lu, H.; Yuan, W.; Shan, H.; Dong, X.
Abstract: We present an analysis of the emission-line property and the broadband spectral energy distribution of the ultraluminous infrared Type II quasar Q 1321+058. The optical and ultraviolet emission lines show four distinct components: a LINER-like component at the systematic velocity, a heavily reddened H II-like component blueshifted by about 400 km s−1, and two broad components blueshifted by about 400 km s−1 and 1900 km s−1, respectively. The emission-line ratios suggest that broad components are produced in dense and α-enriched outflows with a metalicity of 3–5 Z and a density of nH ~ 107 cm−3. The optical–UV continuum is dominated by stellar light and can be modeled with a young (< 1 Myr) plus an intermediate-age (0.5–0.8 Gyr) stellar populations. The near to mid-infrared light is dominated by hot and warm dust heated by the hidden quasar. We derive a star formation rate (SFR) of 300–500 M yr−1 from the UV spectrum and far-infrared luminosity, which is two orders of magnitude larger than that indicated by reddening-uncorrected [O II] luminosity.
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