SIMBAD references

2016MNRAS.458L..24D - Mon. Not. R. Astron. Soc., 458, L24-L28 (2016/May-1)

Spin properties of supermassive black holes with powerful outflows.

DALY R.A.

Abstract (from CDS):

Relationships between beam power and accretion disc luminosity are studied for a sample of 55 high excitation radio galaxies (HERG), 13 low excitation radio galaxies (LERG), and 29 radio loud quasars (RLQ) with powerful outflows. The ratio of beam power to disc luminosity tends to be high for LERG, low for RLQ, and spans the full range of values for HERG. Writing general expressions for the disc luminosity and beam power and applying the empirically determined relationships allows a function that parametrizes the spins of the holes to be estimated. Interestingly, one of the solutions that is consistent with the data has a functional form that is remarkably similar to that expected in the generalized Blandford-Znajek model with a magnetic field that is similar in form to that expected in magnetically arrested disk (MAD) and advection-dominated accretion flow (ADAF) models. Values of the spin function, obtained independent of specific outflow models, suggest that spin and active galactic nucleus type are not related for these types of sources. The spin function can be used to solve for black hole spin in the context of particular outflow models, and one example is provided.

Abstract Copyright: © 2016 The Author Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): black hole physics - galaxies: active

Status at CDS:   Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 97

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2020.06.05-12:47:30

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