On bars, bulges, and the fueling of active galactic nuclei

被引：13

作者：

Wyse, RFG ^{[1
]}

机构：

[1] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

来源：

ASTROPHYSICAL JOURNAL | 2004年 / 612卷 / 01期

关键词：

galaxies : active; galaxies : bulges; galaxies : evolution; galaxies : spiral;

D O I：

10.1086/424484

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页码：L17 / L19

页数：3

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