The AGN Paradigm for Radio-Loud Objects

Authors: Meg Urry

arXiv: astro-ph/0301309v1 - DOI (astro-ph)

Invited Review given at the Paris Conference on AGN, July 2002. To be published in Active Galactic Nuclei: from Central Engine to Host Galaxy, ed. S. Collin, F. Combes, and I. Shlosman, ASP Conf. Series, p. 2-12

License: ASSUMED 1991-2003

Abstract: Radio-loud AGN are characterized by relativistic jets originating near the central supermassive black hole and forming large-scale radio sources at parsec to kiloparsec to Megaparsec distances. The jets are energetically significant, in many cases representing the bulk of the energy extracted from the accretion process. Host galaxies are apparently normal luminous ellipticals, supporting the "Grand Unification" scenario wherein AGN are a transient phase in the evolution of every galaxy. Black hole mass appears to be largely uncorrelated with bolometric luminosity, Eddington ratio, radio luminosity, or radio loudness.

Submitted to arXiv on 16 Jan. 2003

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