2004/08/06 by Rosemary F. Ġ. Wyse, Rosemary F. G. Wyse
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysical Phenomena and Observations #Galaxies: Formation, Evolution, Phenomena #astro-ph
paper · pdf · doi:10.1086/424484
published as Astrophys.J. 612 (2004) L17-L20 · 10 pages, no figures, ApJ Letters, accepted
openalex publication_date 2004/08/06 · arxiv created 2004/08/11 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31
Both the fueling of a central black hole and the buildup of bulges are—at least theoretically—facilitated by nonaxisymmetric potentials. It is argued here that the recently established surface brightness division between bulge-dominated galaxies that dominate the local type 2 active galactic nucleus (AGN) luminosity function and disk-dominated galaxies that host (at best) weak AGNs can be understood in terms of a simple bar-instability criterion.