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Using the wide multiband photometry available in the Cosmic Evolution Survey (COSMOS) field, we explore the host galaxy properties of a large sample of active galactic nuclei (AGNs; ∼1700 objects) with Lbol ranging from 1043 to 1047 erg s−1, obtained by combining X‐ray and optical spectroscopic selections. Based on a careful study of their spectral energy distributions, which have been parametrized...
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