Are the accretion rates super-Eddington in NLS1s?

Luis C. Ho (Observatories of the Carnegie Institution of Washington)

Black holes accrete at a wide range of rates, depending on the evolutionary state of their host galaxies, in response to which the accretion disk can experience modifications in its structure and radiation processes. Nearby AGNs, which cover a broad range of nuclear luminosities, are ideally suited to investigate this problem. I will review the evidence, drawn from a variety of multiwavelength, high-resolution observations of nearby galaxies, that the central engines of AGNs undergo significant changes as a consequence of variations in accretion rates.

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