The obscured circumnuclear region of the outflow galaxy NGC 3079

Wetensch. publicatieFaculteit der Wiskunde en Natuurwetenschappe

The Fueling and Evolution of AGN: Internal and External Triggers

In 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.Comment: Invited 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 correcte

The molecular hydrogen content of NGC 604 and other M33 H II region complexes

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Molecular shocks and the massive outflow in NGC 3079

Wetensch. publicatieFaculteit der Wiskunde en Natuurwetenschappe

Design aspects of a 30-m Giant Infrared and Submillimeter Observatory in space ("GISMO") : a new "flavor" for SAFIR?

Copyright 2004 Society of Photo-Optical Instrumentation Engineers. DOI: 10.1117/12.551300 [Full text of this article is not available in the UHRA]Peer reviewe