Active Galactic Nuclei and Host Galaxies in COSMOS-Web. II. First Look At the Kiloparsec-scale Dual and Offset AGN Population
Junyao Li; Ming-Yang Zhuang; Yue Shen; Marta Volonteri; Nianyi Chen; Tiziana DiMatteo · 2025 · The Astrophysical Journal
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Abstract
Abstract Kiloparsec-scale dual and offset active galactic nuclei (AGNs) are signposts of accreting supermassive black holes (SMBHs) triggered during late-stage galaxy mergers, offering crucial insights into the coevolution of SMBHs and galaxies. However, robustly confirmed systems at high redshift (e.g., z > 1) are scarce and biased toward the most luminous and unobscured systems. In this study, we systematically search for kiloparsec-scale (projected separation <15 kpc) dual and offset AGNs around 571 moderate-luminosity, X-ray-selected AGNs, including the obscured population, utilizing
Abstract by Junyao Li; Ming-Yang Zhuang; Yue Shen; Marta Volonteri; Nianyi Chen; Tiziana DiMatteo, The Astrophysical Journal (2025) — licensed CC BY 4.0.
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Metadata source: OpenAlex · DOI 10.3847/1538-4357/adbae2