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Metal Enriched Outflows and Dusty starburst in the type II quasar Q 1321+058

Ting-Gui Wang·Hongyan Zhou·Honglin Lu·Weimin Yuan·Hongguang Shan·Xiaobo Dong
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Abstract

We present an analysis of the emission line property and the broad band spectral energy distribution of the ultra-luminous infrared Type II quasar Q132+058. The optical and ultraviolet emission lines show four distinct components: a LINER-like component at the systematic velocity, a heavily reddened HII-like component blueshifted by about 400 km/s, and two broad components blueshifted by about 400 km/s and 1900 km/s, respectively. The emission line ratios suggest that broad components are produced in dense and alpha-enriched outflows with a metalicity of 3-5 Zsun and a density of n_H ~ 10^7 cm^-3. The optical--UV continuum is dominated by stellar light and can be modeled with a young (<1 Myr) plus an intermediate age (0.5-0.8Gyr) 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\sun yr$^{-1}$ from the UV spectrum and far-infrared luminosity, which is two orders of magnitude larger than that indicated by reddening uncorrected [OII] luminosity.

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Ting-Gui Wang, Hongyan Zhou, Honglin Lu, Weimin Yuan, Hongguang Shan, Xiaobo Dong. 2007-02-13. Metal Enriched Outflows and Dusty starburst in the type II quasar Q 1321+058. https://arxiv.org/abs/astro-ph/0702334

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