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| Paper: |
Massive Black Holes in Active and Quiescent Galaxies |
| Volume: |
290, Active Galactic Nuclei: from Central Engine to Host Galaxy |
| Page: |
623 |
| Authors: |
Wandel, A. |
| Abstract: |
Massive Black Holes detected in the centers of many nearby galaxies show an approximately linear relation with the luminosity of the host bulge, with the black hole mass being 0.001-0.002 of the bulge mass. We show that massive BHs of AGNs (Seyfert galaxies and quasars, measured by reverberation mapping) follow the same BH-bulge relation as ordinary (inactive) galaxies (Wandel 2002, ApJ 565 762). Narrow line AGN may have a significantly lowe BH/bulge ratio. This fraction is comparable with the fraction of mass in black holes deduced from integrated quasar light, indicating that BHs in ordinary galaxies were formed during an active past, by the accretion of the same matter that fuelled the former active nucleus. Further correlations observed between properties of AGNs and their host galaxies support this scenario. |
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