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2009MNRAS.398.1905W - Mon. Not. R. Astron. Soc., 398, 1905-1914 (2009/October-1)
The black hole mass, Eddington ratio and MBH-σ[Oiii]relation in young radio galaxies.
WU Q.
Abstract (from CDS):
We find that the young radio galaxies as a class deviate systematically from the MBH-σ*relation defined by nearby inactive galaxies, when using σ[Oiii as a surrogate for the stellar velocity dispersion σ*. There is no significant correlation between the deviation of the [Oiii] emission line width, Δσ ≡ σ[Oiii]- σ[pred] and the jet/accretion power, where σ[pred] are calculated from the Tremaine et al. relation using the estimated BH masses. However, we find that the deviation Δσ in young radio galaxies is well correlated with the Eddington ratio, and this correlation is found to be similar to that of radio quiet active galactic nuclei (AGN) (QSOs/NLS1s) where the radio jet is absent or weak. We suggest that the accretion activities may still play an important role in shaping the kinematics of [Oiii] narrow line in these young radio galaxies.
Abstract Copyright: © 2009 The Author. Journal compilation © 2009 RAS
Journal keyword(s): accretion, accretion discs - ISM: jets and outflows - galaxies: active - quasars: emission lines - radio continuum: galaxies
Simbad objects: 65
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