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A very high accretion rate active galaxy case study and a new large sample

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Observational studies of active galactic nuclei (AGN) are pursued in various ways eg. statistical studies of many 10,000’s, smaller samples with multi-frequency data, and extremely detailed investigations of single objects. The results are then discussed and interpreted within a framework of models and general theories. I will describe two such on-going studies on behalf of myself and my collaborators. One is a new case study of an AGN with a very high accretion rate. The other is a more general study based on a new X-ray/optical selected sample of nearly 800 AGN .

This talk is part of the Institute of Astronomy Colloquia series.

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