Luminosity and redshift of galaxies from WISE/SDSS : J/ApJ/788/45

Access to
vizier
VizieR
vizier
VizieR FTP ReadMe
TAP
TAP
Xmatch
Fits
Download notebook

Authors : Toba Y. orcid , Oyabu S., Matsuhara H. (hide) , Oyabu S., Matsuhara H. et..al

VizieR DOI : https://doi.org/10.26093/cds/vizier.17880045
Bibcode : 2014ApJ...788...45T (ADS) (Simbad) (Objects)
...(more)
(hide)
Data origin :

CDS Keywords : Active gal. nuclei; Galaxies, IR; Photometry, infrared; Redshifts
UAT : Active galactic nuclei, Galaxies, Infrared sources, Infrared photometry, Redshifted

Compilation (CCC)

Records :

Inserted into VizieR : 10-Jul-2017
Last modification : 24-Aug-2018

Luminosity and redshift dependence of the covering factor of active galactic nuclei viewed with WISE and Sloan Digital Sky Survey. (2014)

Keywords : catalogs - galaxies active - galaxies: luminosity function, mass function - galaxies: nuclei - infrared: galaxies - methods: statistical

Abstract:In this work, we investigate the dependence of the covering factor (CF) of active galactic nuclei (AGNs) on the mid-infrared (MIR) luminosity and the redshift. We constructed 12 and 22 {mu}m luminosity functions (LFs) at 0.006<=z<=0.3 using Wide-field Infrared Survey Explorer (WISE) data. Combining the WISE catalog (Cat. II/311) with Sloan Digital Sky Survey (SDSS, Cat. II/294) spectroscopic data, we selected 223982 galaxies at 12 {mu}m and 25721 galaxies at 22 {mu}m for spectroscopic classification. We then identified 16355 AGNs at 12 {mu}m and 4683 AGNs at 22 {mu}m by their optical emission lines and cataloged classifications in the SDSS. Following that, we estimated the CF as the fraction of Type 2 AGN in all AGNs whose MIR emissions ...(more)
Abstract: (hide)
American Astronomical Society policies
We selected 12 and 22 um flux-limited galaxies based on the WISE (Cat. II/311) and SDSS (Cat. II/294) catalogs, and these galaxies were then classified into five types according to their optical spectroscopic information in the SDSS catalog. For spectroscopically classified galaxies, we constructed the luminosity functions using the 1/V_max_ method, considering the detection limit of the WISE and SDSS catalogs.

  • II/294 : The SDSS Photometric Catalog, Release 7
  • II/311 : WISE All-Sky Data Release (Cutri+ 2012)
  • J/ApJ/697/506 : Mid-infrared galaxy luminosity function from AGN
  • J/ApJ/743/34 : WISE and SDSS-DR7 data in 69 galaxy clusters
  • J/other/RMxAA/47.361 : AGN activity in isolated SDSS galaxies (Coziol+, 2011)

                


                

                    

                


                

                    

                


                

                    
Catalogue provenance