SIMBAD references

2006A&A...451...71F - Astronomy and Astrophysics, volume 451, 71-83 (2006/5-3)

A radio census of nuclear activity in nearby galaxies.

FILHO M.E., BARTHEL P.D. and HO L.C.

Abstract (from CDS):

In order to determine the incidence of black hole accretion-driven nuclear activity in nearby galaxies, as manifested by their radio emission, we have carried out a high-resolution Multi-Element Radio-Linked Interferometer Network (MERLIN) survey of LINERs and composite LINER/HII galaxies from a complete magnitude-limited sample of bright nearby galaxies (Palomar sample) with unknown arcsecond-scale radio properties. There are fifteen radio detections, of which three are new subarcsecond-scale radio core detections, all being candidate AGN. The detected galaxies supplement the already known low-luminosity AGN - low-luminosity Seyferts, LINERs and composite LINER/HII galaxies - in the Palomar sample. Combining all radio-detected Seyferts, LINERs and composite LINER/HII galaxies (LTS sources), we obtain an overall radio detection rate of 54% (22% of all bright nearby galaxies) and we estimate that at least ∼50% (∼20% of all bright nearby galaxies) are true AGN. The radio powers of the LTS galaxies allow the construction of a local radio luminosity function. By comparing the luminosity function with those of selected moderate-redshift AGN, selected from the 2dF/NVSS survey, we find that LTS sources naturally extend the RLF of powerful AGN down to powers of about 10 times that of Sgr A*.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: nuclei - galaxies: luminosity function, mass function

Status at CDS:  

Simbad objects: 81

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2006A&A...451...71F and select 'bookmark this link' or equivalent in the popup menu


2020.06.03-03:40:16

© Université de Strasbourg/CNRS

    • Contact