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- W2989334620 abstract "We use quasi-stellar object (QSO) emission-line widths to examine the MBH* relationship as a function of redshift and to extend the relationship to larger masses. Supermassive black holes in galactic nuclei are closely related to the bulge of the host galaxy. The mass of the black holeMBH increases with the bulge luminosity and with the velocity dispersion of the bulge stars, *. An important clue to the origin of this correlation would be an observational determination of the evolution, if any, in the MBH* relationship as a function of cosmic time. The high luminosity of QSOs affords the potential for studies at large redshifts. We derive black hole masses from the continuum luminosity and the width of the broad H line and * from the width of the narrow [O iii] lines. We find that radio-quiet QSOs conform to the establishedMBH* relationship up to values ofMBH 1010 M , with no discernible change in the relationship out to redshifts of z 3. These results are consistent with the idea that the growth of supermassive black holes and massive bulges occurred simultaneously. Subject headings: black hole physics — galaxies: active — quasars: general On-line material: color figures" @default.
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- W2989334620 date "2003-12-01" @default.
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- W2989334620 title "The black Hole-bulge relationship IN QSOS" @default.
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