Catalogue of type 2 AGN in 6dF galaxy survey
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Active galactic nuclei (AGNs) are the compact, energetic central regions of galaxies, powered by supermassive black holes that accrete surrounding gas and dust. Their optical...
活动星系核（Active galactic nuclei，AGNs）是星系中致密且高能的核心区域，由吸积周遭气体与尘埃的超大质量黑洞驱动。其光学……
