J/ApJ/790/54ivo://CDS.VizieR/J/ApJ/790/54doi:10.26093/cds/vizier.17900054CDSChung S.M.Kochanek C.S.Assef R.Brown M.J.I.Stern D.Jannuzi B.T.,Gonzalez A.H.Hickox R.C.Moustakas J.2017-05-22T14:52:18Z2017-03-27T10:16:18ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fractive-galactic-nucleiredshiftedastronomical-modelsWe classify the spectral energy distributions (SEDs) of 431,038 sources in the 9 deg^2^ Bootes field of the NOAO Deep Wide-Field Survey (NDWFS). There are up to 17 bands of data available per source, including ultraviolet (GALEX), optical (NDWFS), near-IR (NEWFIRM), and mid-infrared (IRAC and MIPS) data, as well as spectroscopic redshifts for ~20,000 objects, primarily from the AGN and Galaxy Evolution Survey. We fit galaxy, active galactic nucleus (AGN), stellar, and brown dwarf templates to the observed SEDs, which yield spectral classes for the Galactic sources and photometric redshifts and galaxy/AGN luminosities for the extragalactic sources. The photometric redshift precision of the galaxy and AGN samples are {sigma}/(1 + z) = 0.040 and {sigma}/(1 + z) = 0.169, respectively, with the worst 5% outliers excluded. On the basis of the {Chi}_{nu}^2^ of the SED fit for each SED model, we are able to distinguish between Galactic and extragalactic sources for sources brighter than I = 23.5 mag. We compare the SED fits for a galaxy-only model and a galaxy-AGN model. Using known X-ray and spectroscopic AGN samples, we confirm that SED fitting can be successfully used as a method to identify large populations of AGNs, including spatially resolved AGNs with significant contributions from the host galaxy and objects with the emission line ratios of "composite" spectra. We also use our results to compare with the X-ray, mid-IR, optical color, and emission line ratio selection techniques. For an F-ratio threshold of F > 10, we find 16,266 AGN candidates brighter than I = 23.5 mag and a surface density of ~1900 AGN deg^-2^.2014ApJ...790...54Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/790/54CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/664/761 : BVRI photometry of AGNs in clusters (Martini+, 2007)J/ApJS/187/64 : The simultaneous optical-to-X-ray SED of AGNs (Grupe+, 2010)J/A+A/529/A135 : AGN Opt/IR properties in Lockman Hole (Rovilos+, 2011)J/AJ/144/11 : IR imaging, nuclear SEDs, Spitzer spectra of 22 AGNsJ/ApJS/200/8 : AGES: the AGN and Galaxy Evolution Survey (Kochanek+, 2012)J/MNRAS/437/968 : AGN automatic photometric classification (Cavuoti+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/790/54https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/790/54http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/790/54https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/790/54https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/790/54http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/790/54GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/790/54/table2 (Model results)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/790/54/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/790/54/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/790/54/table2?GETtext/xml+votable180.050000true217.1822332.305230.0055555555555555565/2286 2287 2628 2629 6/9135 9194 10501 10521 10524 10560https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/790/54?format=asciiOpticaldefaultJ/ApJ/790/54/table2Model resultsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Aperture Right Ascension (J2000)degpos.eq.ra;meta.mainindexedDEJ2000Aperture Declination (J2000)degpos.eq.dec;meta.mainindexedImagI band 6'' diameter aperture magnitudemagphot.mag;em.opt.IfloatSSExtractor stellarity index (1 = point source)src.class.starGalaxyfloatzsp? AGES spectroscopic redshift (1)src.redshiftfloatnullableNNumber of bands with detections/limits used in fitsmeta.numbercharz(G)Galaxy-only model photometric redshiftsrc.redshift.photfloatchi2(G)Galaxy-only model reduced {Chi}^2^stat.fit.chi2floatL(Ell)Log elliptical galaxy component luminosity (2)log(1e+10solLum)phys.luminosityfloatL(Sbc)Log Sbc galaxy component luminosity (2)log(1e+10solLum)phys.luminosityfloatL(Irr)Log irregular galaxy component luminosity (2)log(1e+10solLum)phys.luminosityfloatz(G+A)Galaxy + AGN model photometric redshiftsrc.redshift.photfloatchi2(G+A)Galaxy + AGN model reduced {Chi}^2^stat.fit.chi2floatL(AGN+)Log Galaxy+AGN model AGN component luminosity (2)log(1e+10solLum)phys.luminosityfloatL(Ell+)Log galaxy+AGN model elliptical galaxy component luminosity (2)log(1e+10solLum)phys.luminosityfloatL(Sbc+)Log galaxy+AGN model Sbc galaxy component luminosity (2)log(1e+10solLum)phys.luminosityfloatL(Irr+)Log galaxy+AGN model irregular galaxy component luminosity (2)log(1e+10solLum)phys.luminosityfloatFF-ratio value compared to Galaxy-only fitstat.fit.paramfloatE(B-V)E(B-V) applied to AGN templatemagphot.color.excessfloatchi2(S)Stellar model reduced {Chi}^2^stat.fit.chi2floatSTypeStellar type of best fit (3)src.spTypechar