J/ApJ/756/72ivo://CDS.VizieR/J/ApJ/756/72doi:10.26093/cds/vizier.17560072CDSWillner S.P.Ashby M.L.N.Barmby P.Chapman S.C.Coil A.L.,Cooper M.C.Huang J.-S.Ivison R.Koo D.C.2017-11-10T11:15:32Z2014-04-30T13:58:12ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleiinfrared-photometryradio-continuum-emissionredshiftedvisible-astronomyphotometryastronomical-object-identificationsurveysInfrared 3.6-8{mu}m images of the Extended Groth Strip yield plausible counterpart identifications for all but one of 510 radio sources in the AEGIS20 S(1.4GHz)>50{mu}Jy sample. This is the first such deep sample that has been effectively 100% identified. Achieving the same identification rate at R band would require observations reaching R_AB_>27. Spectroscopic redshifts are available for 46% of the sample and photometric redshifts for an additional 47%. Almost all of the sources with 3.6{mu}m AB magnitudes brighter than 19 have spectroscopic redshifts z<1.1, while fainter objects predominantly have photometric redshifts with 1<~z<~3. Unlike more powerful radio sources that are hosted by galaxies having large stellar masses within a relatively narrow range, the AEGIS20 counterparts have stellar masses spanning more than a factor of 10 at z~1. The sources are roughly 10%-15% starbursts at z<~0.5 and 20%-25% active galactic nuclei mostly at z>1 with the remainder of uncertain nature.2012ApJ...756...72Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/756/72CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIII/268 : DEEP2 Redshift Survey, Data Release 4 (Matthews+ 2013)II/317 : The CFHTLS Survey (T0007 release) (Hudelot+ 2012)II/301 : The DEEP2-DR1 Photometric Catalog (Coil+ 2004)J/ApJ/735/86 : NEWFIRM MBS: photometric catalogs (Whitaker+, 2011)J/ApJS/193/30 : UV-to-FIR analysis of sources in the EGS. II. (Barro+, 2011)J/ApJS/193/14 : DEEP3 Galaxy Redshift Survey: GOODS-N field (Cooper+, 2011)J/ApJS/193/13 : Spitzer/IRAC sources in the EGS I. SEDs (Barro+, 2011)J/A+A/526/A72 : Early-type galaxies in the EGS (Fernandez Lorenzo+, 2011)J/ApJ/717/1181 : Spitzer power-law galaxies in EGS (Park+, 2010)J/AJ/137/179 : AGNs in the EGS Survey (Ramos Almeida+, 2009)J/ApJS/180/102 : AEGIS-X: Chandra deep survey (Laird+, 2009)J/ApJS/177/431 : Mid-IR sources in EGS (Barmby+, 2008)J/MNRAS/382/109 : Massive galaxies in Extended Groth Strip (Trujillo+, 2007)J/ApJ/642/126 : MIR observations in the extended Groth strip (Barmby+, 2006)J/AJ/132/2159 : IRAC counterparts of 6cm galaxies in EGS (Willner+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/756/72https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/756/72http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/756/72https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/756/72https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/756/72http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/756/72GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/756/72/table1 (20cm radio sources with IRAC coverage)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/756/72/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/756/72/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/756/72/table1?GETtext/xml+votable180.050000true214.49187552.526250.005555555555555556Cone search capability for table J/ApJ/756/72/irac_R (Counterparts of EGS 20cm radio sources in infra-red (IRAC, tables 3 and 5), and optical (R-band, table 4))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/756/72/irac_R?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/756/72/irac_R?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/756/72/irac_R?GETtext/xml+votable180.050000true214.4923152.52630.0055555555555555566/11424 11425 114289.932213363424795e-25 6.185923063528282e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/756/72?format=asciiOpticalInfraredRadiodefaultJ/ApJ/756/72/table120cm radio sources with IRAC coverageSeq[1/511] Running sequence numbermeta.idintprimaryNiNumber of IRAC counterpartsmeta.numberintnullableAEGIS20AEGIS20 identifier (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharSp[0.04/61.62] 20cm flux densitymJyphot.flux.density;em.radio.750-1500MHzfloate_Sp[0.009/0.04] The 1{sigma} uncertainty in SpmJystat.error;src.spTypefloatSint[0.04/135.4] Integrated 20 cm flux densitymJyphot.flux.density;em.radio.750-1500MHzfloate_Sint[-1/0.2] The 1{sigma} uncertainty in Sint (1)mJystat.errorfloata[0/79] Major axis (2)arcsecphys.angSizefloatb[-1/6.5]? Minor axis (2)arcsecphys.angSize;srcfloatnullablePA[0/180] Position Angledegpos.posAngfloatSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from AEGIS names (right ascension part)degpos.eq.ra;meta.main_DEPositions from AEGIS names (declination part)degpos.eq.dec;meta.mainJ/ApJ/756/72/irac_RCounterparts of EGS 20cm radio sources in infra-red (IRAC, tables 3 and 5), and optical (R-band, table 4)Seq[1/511] Running source number (G2)meta.id;meta.mainintm_Seq[ENSW] Component identificationmeta.code.multipcharRAJ2000Right Ascension of IRAC source (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of IRAC source (J2000)degpos.eq.dec;meta.mainEGSIRACEGSIRAC identifier (1)meta.id.crosscharoff.r[0/8.5] Radial offset from IRAC to radio position (1)arcsecpos;arith.difffloatExp[2/68] Minimum number of useful images (2)meta.numberintIRAC? Source name in Rainbow database (3)meta.id.crosscharoff.d? Radial offset from IRAC to Rainbow databasearcsecpos;arith.difffloatnullableComAdditional commentsmeta.notecharmtI[1/7] IRAC magnitude type (G1)meta.noteint[3.6]Spitzer/IRAC 3.6 micron band AB magnitudemagphot.mag;em.IR.3-4umfloate_[3.6]Uncertainty in [3.6] (4)magstat.errorfloat[4.5]Spitzer/IRAC 4.5 micron band AB magnitudemagphot.mag;em.IR.4-8umfloate_[4.5]Uncertainty in [4.5] (4)magstat.errorfloat[5.8]? Spitzer/IRAC 5.8 micron band AB magnitudemagphot.flux.density;em.IR.4-8umfloatnullablee_[5.8]? Uncertainty in [5.8] (4)magstat.errorfloatnullable[8.0]? Spitzer/IRAC 8.0 micron band AB magnitudemagphot.flux.density;em.IR.8-15umfloatnullablee_[8.0]? Uncertainty in [8.0] (4)magstat.errorfloatnullableRARdeg? Right Ascension of R-band counterpart (5)degpos.eq.ranullableDERdeg? Declination of R-band counterpart (5)degpos.eq.decnullableoff.R[0.03/1]? Distance from R to IRAC position of counterpartarcsecpos;arith.difffloatnullablemtR[1/7] Red-band magnitude type (G1)meta.noteintRmag[15/27]? SExtractor R band AB magnitudemagphot.mag;em.opt.Rfloatnullablee_Rmag[-5/0.4]? Uncertainty in Rmag (6)magstat.error;phot.mag;em.opt.Rfloatnullablez[0.001/3.8]? Redshiftsrc.redshiftfloatnullabler_z[1/9]? Source of z (7)meta.ref;pos.frameintnullableLum? The 3GHz luminosityW/Hzphys.luminosity;em.radiofloatnullable