We have studied a sample of NLS1 in order to understand thoroughly these active galaxies. Our preliminary results suggest that a BH-bulge relation exists also for NLS1 but conclusions are still in conflict. M(Black Hole) - M(Bulge) and MBH - σ let us think of opposite scenarios about the nature of NLS1. We show that, in order to make clear if NLS1 do fill the lower ranges of the BH-bulge relation, it is necessary a direct measure of the stellar velocity dispersion in the nuclei of these galaxies.
The BH-bulge relation for Narrow-Line Seyfert 1 and Seyfert 1
CIROI, STEFANO;RAFANELLI, PIERO
2003
Abstract
We have studied a sample of NLS1 in order to understand thoroughly these active galaxies. Our preliminary results suggest that a BH-bulge relation exists also for NLS1 but conclusions are still in conflict. M(Black Hole) - M(Bulge) and MBH - σ let us think of opposite scenarios about the nature of NLS1. We show that, in order to make clear if NLS1 do fill the lower ranges of the BH-bulge relation, it is necessary a direct measure of the stellar velocity dispersion in the nuclei of these galaxies.File in questo prodotto:
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