J/MNRAS/489/3403ivo://CDS.VizieR/J/MNRAS/489/3403doi:10.26093/cds/vizier.74893403CDSMarubini T.Jarvis M.J.Fine S.Mauch T.McAlpine K.Prescott M.2024-08-20T20:12:56Z2023-02-13T14:13:16ZCDS support team

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

cds-question@unistra.frgalaxiesphotometryactive-galactic-nucleiredshiftedradio-sourcesvisible-astronomyinfrared-astronomyIn this study we define a new sample of distant powerful radio galaxies in order to study their host galaxy properties and provide targets for future observations of HI absorption with new radio telescopes and to understand the fuelling and feedback from such sources. We have cross-matched the Sydney University Molonglo Sky Survey (SUMSS) radio catalogue at 843MHz with the VISTA Hemisphere Survey (VHS) near-infrared catalogue using the likelihood ratio technique. Photometric redshifts from the Dark Energy Survey are then used to assign redshifts to the radio source counterparts. We found a total of 249 radio sources with photometric redshifts over a 148deg^2^ region. By fitting the optical and near-infrared photometry with spectral synthesis models we determine the stellar mass and star formation rates of the radio sources, finding typical stellar masses of 10^11^-10^12^M_{sun}_ for the powerful high-redshift radio galaxies. We also find a population of low-mass blue galaxies. However, by comparing the derived star formation rates to the radio luminosity, we suggest that these sources are false positives in our likelihood ratio analysis. Follow-up, higher resolution (~<5arcsec) radio imaging would help alleviate these mid-identifications, as the limiting factor in our cross-identifications is the low resolution (~45arcsec) of the SUMSS radio imaging.2019MNRAS.489.3403Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/489/3403CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/81 : Sydney University Molonglo Sky Survey (SUMSS V2.1) (Mauch+ 2008)II/367 : The VISTA Hemisphere Survey (VHS) catalog DR5 (McMahon+, 2020)II/357 : The Dark Energy Survey (DES): Data Release 1 (Abbott+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/489/3403https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/489/3403http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/489/3403https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/489/3403https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/489/3403http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/489/3403GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/489/3403/table1 (The radio galaxy overlapping SUMSS+VHS+DES defined in this paper)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/489/3403/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/489/3403/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/489/3403/table1?GETtext/xml+votable180.050000true72.5027917-46.30358330.0055555555555555565/8461 8472 8482-8483 8486-8488 8495 8497-8498 8500 8502-8504 8507-8508 6/33241 33243 33247 33268 33271 33819-33820 33823 33831 33837 33848-33850 33852-33853 33855 33858 33864-33865 33867 33892 33894 33896-33897 33899 33901-33903 33912 33914-33915 33923 33925 33927 33936-33937 33939 33942 33956 33958-33959 33965 33969 33971-33972 33974-33975 33977-33979 33984-33986 33998-33999 34005 34007 34021 34023 34025-34027 34040 34042 34177 34184-34185 34368 343725.585776613014535e-25 5.585776613014535e-25https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/489/3403?format=asciiOpticalInfraredRadiodefaultJ/MNRAS/489/3403/table1The radio galaxy overlapping SUMSS+VHS+DES defined in this paperSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[1/249] Galaxy identifiermeta.id;meta.mainintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.maingmag? DES g-band magnitudemagphot.mag;em.opt.Bfloatnullablee_gmag? Error on gmagmagstat.error;phot.magfloatnullablermag? DES r-band magnitudemagphot.mag;em.opt.Rfloatnullablee_rmag? Error on rmagmagstat.error;phot.magfloatnullableimagDES i-band magnitudemagphot.mag;em.opt.Ifloate_imagError on imagmagstat.error;phot.magfloatzmagDES z-band magnitudemagphot.mag;em.opt.Ifloate_zmagError on zmagmagstat.error;phot.magfloatJmag? VHS J-band magnitudemagphot.mag;em.IR.Jfloatnullablee_Jmag? Error on Jmagmagstat.error;phot.magfloatnullableHmag? VHS H-band magnitudemagphot.mag;em.IR.Hfloatnullablee_Hmag? Error on Hmagmagstat.error;phot.magfloatnullableKsmagVHS Ks-band magnitudemagphot.mag;em.IR.Kfloate_KsmagError on Ksmagmagstat.error;phot.magfloatS843SUMSS flux at 843MHzmJyphot.flux.density;em.radio.750-1500MHzfloate_S843Error on S843mJystat.errorfloatzphotPhotometric redshiftsrc.redshiftfloatb_zphotLower bound on zphotmeta.notefloatB_zphotUpper bound on zphotmeta.notefloatlogM*Logarithm of stellar masslog(solMass)phys.massfloatlogSFRLogarithm of star formation ratelog(solMass.yr**-1)phys.SFRfloat