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09 February 2025
 
  » arxiv » astro-ph/0107179

 Article overview



Morphology of AGN in the central kiloparsec
Paul Martini ;
Date 10 Jul 2001
Subject astro-ph
AffiliationCarnegie Observatories
AbstractHubble Space Telescope observations of the central kiloparsec of AGN have revealed a wealth of structure, particularly nuclear bars and spirals, that are distinct from analogous features in the disks of spiral galaxies. WFPC2 and NICMOS images of a large sample of AGN observed at high spatial resolution make it possible to quantify the frequency and detailed properties of these structures. Nearly all AGN have nuclear spiral dust lanes in the central kiloparsec, while only a small minority contain nuclear bars. If these nuclear dust spirals trace shocks in the circumnuclear, gaseous disks, they may dissipate sufficient angular momentum to fuel the active nucleus.
Source arXiv, astro-ph/0107179
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