Using archival STIS kinematics to probe AGN fueling in the central 100 parsecs

Details Using archival STIS kinematics to probe AGN fueling in the central 100 parsecs Using archival STIS kinematics to probe AGN fueling in the central 100 parsecs

Jul 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002hst..prop.9547m&link_type=abstract

HST Proposal ID #9547

Physics

Hst Proposal Id #9547 Galaxies

Scientific paper

Low-luminosity AGN far outnumber the more luminous quasars and may therefore be the dominant mechanism for cosmic black hole growth, yet the mechanisms that remove angular momentum from their fuel and cause it to accrete onto their central, supermassive black holes are essentially unknown. Demographic arguments suggest that the typical lifetime of AGN activity may be approximately 10^7 years and therefore spatially resolving the processes that give rise to AGN activity will require spatial resolution on scales where the dynamical timescale is less than this, or tens of parsecs. We propose to extract archival STIS spectra of nearby active and non-active galaxies to quantify their kinematic properties and form the basis for a future study of the circumnuclear kinematics of our previous HST imaging targets. In conjunction with our ground-based spectroscopy, we will investigate the kinematic properties of galaxies over the physical scales at which angular momentum must be removed from future AGN fuel.

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