Relations between Massive Black Holes in AGN and their Host Galaxies

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dc.creatorWandel, Amri
dc.date2003-03-25
dc.date2003-05-01
dc.date.accessioned2026-07-07T02:08:06Z
dc.date.available2026-07-07T02:08:06Z
dc.descriptionMassive black holes detected in the centers of many nearby galaxies are linearly correlated with the luminosity of the host bulge, the black hole mass being about 0.1% of the bulge mass. An even stronger relation exists between the BH mass (Mbh) and the stellar velocity dispersion in the host bulge. We show that massive BHs of AGNs (measured by reverberation mapping) and their bulge luminosity (measured by using a bulge/disk decomposition) follow the same relations as ordinary (inactive) galaxies, with the exeption of narrow line AGN which apparently have significantly lower BH/bulge ratios. Narrow line AGNs seem to be outstanding also in the Mbh-velocity dispersion relation: the few Seyfert galaxies with measured velocity dispersion seem to indicate that narrow line Seyfert 1 galaxies have a smaller BH mass/velocity dispersion ratio than quiescent galaxies and broad line Syferts. Estimating the velocity dispersion for from the bulge luminosity with the Faber-Jackson relation more than doubles the sample and supports these results.
dc.description6 pages, 3 figures, Carnegie Conference on Coevolution of Black Holes and Galaxies, 2003 ed. L.C.Ho
dc.identifierhttps://arxiv.org/abs/astro-ph/0303562
dc.identifierhttp://arxiv.org/abs/astro-ph/0303562
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/5913
dc.subjectAstrophysics
dc.titleRelations between Massive Black Holes in AGN and their Host Galaxies
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