FIRST-NVSS-SDSS AGN sample catalog : J/ApJ/699/L43


Authors : Smolcic V. orcid (hide) et..al

Bibcode : 2009ApJ...699L..43S (ADS) (Simbad) (Objects) (hide)
Data origin :

CDS Keywords : Surveys; Active gal. nuclei; Galaxies, radio
UAT : Surveys, Active galactic nuclei, Radio galaxies

Compilation (CCC)

Records :

Inserted into VizieR : 03-Feb-2012
Last modification : 18-Feb-2012

The radio AGN population dichotomy green valley Seyferts versus red sequence low-excitation active galactic nuclei. (2009)

Keywords : cosmology observations - galaxies: active - galaxies: evolution - galaxies: fundamental parameters - radio continuum: galaxies

Abstract:Radio outflows of active galactic nuclei (AGNs) are invoked in cosmological models as a key feedback mechanism in the latest phases of massive galaxy formation. Recently, it has been suggested that the two major radio AGN populations-the powerful high-excitation, and the weak low-excitation radio AGNs (HERAGN and LERAGN, respectively)-represent two earlier and later stages of massive galaxy buildup. To test this, here we make use of a local (0.04<z<0.1) sample of ~500 radio AGNs with available optical spectroscopy, drawn from the FIRST, NVSS, SDSS, and 3CRR surveys. ...(more)
Abstract: (hide)

  • VIII/71 : The FIRST Survey Catalog, Version 03Apr11 (Becker+ 2003)
  • VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)
  • VIII/62 : The Westerbork Northern Sky Survey (Leiden, 1998)
  • VIII/40 : GB6 catalog of radio sources (Gregory+ 1996)
  • http://www.sdss.org : SDSS Home Page

                
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