SIMBAD references

2002ApJ...571L...1A - Astrophys. J., 571, L1-L5 (2002/May-3)

The relation between mid-infrared emission and black hole mass in active galactic nuclei: a direct way to probe black hole growth.


Abstract (from CDS):

We use a large, heterogeneous sample of local active galactic nuclei (AGNs) that includes Seyfert 1 galaxies, Seyfert 2 galaxies, and Palomar-Green quasars to investigate for the first time the relation between black hole mass (MBH) and mid-infrared nuclear emission. We find a clear relation between MBH and 10 µm nuclear luminosity for these local AGNs. There are no significant differences between type 1 and type 2 objects, implying that the reprocessing of the 10 µm nuclear emission is not severely affected by geometric and optical depth effects. We also confirm that MBH is related to the 2-10 keV X-ray luminosity, but only for Compton-thin galaxies. We present a theoretical basis for these empirical relations and discuss possible reasons for the observed scatter. Our results show that rest-frame 10 µm and hard X-ray luminosities (especially the former, which is applicable to all AGN types) can be powerful tools for conducting a census of BH masses at high redshift and for probing their cosmological evolution.

Abstract Copyright:

Journal keyword(s): Black Hole Physics - Galaxies: Active - Galaxies: Nuclei - Galaxies: Seyfert - Galaxies: Quasars: General

Status at CDS:  

Simbad objects: 73

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