The Fueling and Evolution of AGN: Internal and External Triggers

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dc.creatorJogee, Shardha
dc.date2004-08-20
dc.date2008-07-10
dc.date.accessioned2026-07-07T10:27:17Z
dc.date.available2026-07-07T10:27:17Z
dc.descriptionIn this chapter, I review the fueling and evolution of active galactic nuclei (AGN) under the influence of internal and external triggers, namely intrinsic properties of host galaxies (morphological or Hubble type, color, presence of bars and other non-axisymmetric features, etc) and external factors such as environment and interactions. The most daunting challenge in fueling AGN is arguably the angular momentum problem as even matter located at a radius of a few hundred pc must lose more than 99.99 % of its specific angular momentum before it is fit for consumption by a BH. I review mass accretion rates, angular momentum requirements, the effectiveness of different fueling mechanisms, and the growth and mass density of black BHs at different epochs. I discuss connections between the nuclear and larger-scale properties of AGN, both locally and at intermediate redshifts, outlining some recent results from the GEMS and GOODS HST surveys.
dc.descriptionInvited Review Chapter to appear in LNP Volume on "AGN Physics on All Scales", Chapter 6, in press. 40 pages, 12 figures. Typo in Eq 5 corrected
dc.identifierhttps://arxiv.org/abs/astro-ph/0408383
dc.identifierhttp://arxiv.org/abs/astro-ph/0408383
dc.identifierLect.NotesPhys.693:143,2006
dc.identifierdoi:10.1007/3-540-34621-X_6
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177111
dc.subjectAstrophysics
dc.titleThe Fueling and Evolution of AGN: Internal and External Triggers
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