J/ApJ/720/555ivo://CDS.VizieR/J/ApJ/720/555doi:10.26093/cds/vizier.17200555CDSParra R.Conway J.E.Aalto S.Appleton P.N.Norris R.P.,Pihlstrom Y.M.Kewley L.J.2017-06-12T08:25:08Z2012-07-12T16:00:45ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleigalaxiesinfrared-sourcesgalaxy-classification-systemsradio-continuum-emissionWe present results from 4.8GHz Very Large Array (VLA) and global very long baseline interferometry (VLBI) observations of the northern half of the moderate FIR luminosity (median L_IR_=10^11.01^L_{sun}_) COLA (Compact Objects in Low-power AGNs) sample of star-forming galaxies. VLBI sources are detected in a high fraction (20/90) of the galaxies observed. The radio luminosities of these cores (~10^21^W/Hz) are too large to be explained by radio supernovae or supernova remnants and we argue that they are instead powered by active galactic nuclei (AGNs). These sub-parsec scale radio cores are preferentially detected toward galaxies whose VLA maps show bright 100-500 parsec scale nuclear radio components. Since these latter structures tightly follow the FIR to radio-continuum correlation for star formation, we conclude that the AGN-powered VLBI sources are associated with compact nuclear starburst environments. The implications for possible starburst-AGN connections are discussed. The detected VLBI sources have a relatively narrow range of radio luminosity consistent with models in which intense compact Eddington-limited starbursts regulate the gas supply onto a central supermassive black hole. The high incidence of AGN radio cores in compact starbursts suggests little or no delay between the starburst phase and the onset of AGN activity.2010ApJ...720..555Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/720/555CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)II/156 : IRAS Faint Source Catalog, |b| > 10, Version 2.0 (Moshir+ 1989)II/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986)J/AJ/138/1032 : Filling in the gaps in the 4.85GHz sky (Healey+, 2009)J/ApJS/175/314 : VSOP 5GHz AGN survey V. (Dodson+, 2008)J/A+A/416/35 : Radio Emission from VLA FIRST Survey AGN (Wadadekar, 2004)J/A+A/409/115 : VLA imaging of IRAS 1 Jy ULIRG sample (Nagar+, 2003)J/AJ/126/1607 : IRAS Revised Bright Galaxy Sample (Sanders+, 2003)J/ApJ/554/803 : New VLA Sky Survey (NVSS) Cat of IRAS 2 Jy Galaxies (Yun+J/A+A/342/378 : 6 and 20cm flux densities of radio galaxies (Gurvits+ 1999)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/720/555https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/720/555http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/720/555https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/720/555https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/720/555http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/720/555GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/720/555/cola-n (COLA-North sample radio and optical results)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/720/555/cola-n?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/720/555/cola-n?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/720/555/cola-n?GETtext/xml+votable180.050000true0.790583321.96012780.0055555555555555566/203 226 286 377 538 614 627 629 747 959 1000 1008 1596 1682 1689 1701 1881 1918 1996 2211 2360 2363 2433 2518 2552 2680 3446 3521 3824 3852 3863 4000 4147 4843 4993 5130 6347 6348 6360 6781 7309 7763 7928 8111 8126 8266 8482 8562 8673 8921 9133 10210 10213 10281 10357 10453 10465 10469 11592 12239 13459 13523 13925 14948 15323 16045 17751 17847 18300 18779 18897 18930 18932 19283 19625 20060 20061 20230 20237 20254 20371 22468 22875 22973 23013 23160 23339 23720 23921 24123 24228 26028 26198 27340 27724 27806 28453 28515 28517 31430 31971 32183 32187 32216 32548 327403.180513520130092e-24 3.180513520130092e-24https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/720/555?format=asciiOpticalInfraredRadiodefaultJ/ApJ/720/555/cola-nCOLA-North sample radio and optical resultsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIRASIRAS name (G1)meta.id;meta.maincharprimaryONameOther namemeta.idcharRAJ2000VLA Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000VLA Degree of Declination (J2000)pos.eq.dec;meta.mainIR[I] I: indicates an IRAS position; not detected by VLAmeta.codecharVHelNED Heliocentric velocitykm/sspect.dopplerVeloc;pos.heliocentricintDLLuminosity distance (1)Mpcpos.distance;pos.heliocentricfloatlogLIRLog of IR luminositylog(solLum)phys.luminosity;em.IRfloatlogL1.4Log of 1.4GHz luminosity (2)log(W.Hz**-1)phys.luminosity;em.radiofloatlogLFIRLog of far IR spectral luminositylog(W.Hz**-1)phys.luminosity;em.IRfloatq1.4Log ratio of far IR to 1.4GHz luminosities (3)phys.luminosity;arith.ratiofloatNVSSNumber of cross-match with the NVSS catalog within 30"meta.ref.urlintnullableArrayVLA array usedinstr.setupcharMorphVLA morphology class of 4.8GHz image (4)meta.code.class;src.morph.typecharS4.8t? Recovered 4.8GHz flux densitymJyphot.flux.density;em.radio.3-6GHzdoublenullableq4.8? Log ratio of S4.8t to FIR flux densitiesphys.luminosity;arith.ratiofloatnullableS4.8c? Total gaussian fitted 4.8GHz flux density (5)mJyphot.flux.density;em.radio.3-6GHzfloatnullableamaj? Fitted gaussian major axis (6)arcsecphys.angSizefloatnullablebmin? Fitted gaussian minor axis (6)arcsecphys.angSize;srcfloatnullablelogTb? Log Peak 4.8GHz brightness temperature (7)log(K)phys.temperature;stat.maxfloatnullableEpochVLBI epoch(s) observedtime.epochcharV[*] *: VLBI detectionmeta.notecharClOptical class (G2)meta.code.classcharSimbadSimbad column added by the CDSmeta.refcharNEDSimbad column added by the CDSmeta.refcharJ/ApJ/720/555/table4VLBI resultsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIRASIRAS name (G1)meta.id;meta.maincharONameOther namemeta.idcharl_Eb-WbLimit flag on Eb-Wb (1)meta.code.errorcharEb-Wb? VLBI 4.8GHz flux obtained from the peak in the Delay-Rate map (Effelsberg telescope)mJyphot.flux.density;em.radio.3-6GHzfloatnullablee_Eb-Wb? 1{sigma} uncertainty on Eb-WbmJystat.errorfloatnullablel_Eb-Jb1Limit flag on Eb-Jb1 (1)meta.code.errorcharEb-Jb1? VLBI 4.8GHz flux obtained from the peak in the Delay-Rate map (Jodrell Bank, Lovell telescope)mJyphot.flux.density;em.radio.3-6GHzfloatnullablee_Eb-Jb1? 1{sigma} uncertainty on Eb-Jb1mJystat.errorfloatnullablel_Eb-ArLimit flag on Eb-Ar (1)meta.code.errorcharEb-Ar? VLBI 4.8GHz flux obtained from the peak in the Delay-Rate map (Arecibo)mJyphot.flux.density;em.radio.3-6GHzdoublenullablee_Eb-Ar? 1{sigma} uncertainty on Eb-ArmJystat.errorfloatnullablef_Eb-Ar[n] Flag on Arp 220 (2)meta.codecharl_ASizeLimit flag on ASizemeta.code.error;pos.distance;phys.sizecharASize? Angular size (3)masphys.angSizefloatnullablel_LSizeLimit flag on LSizemeta.code.error;pos.distance;phys.sizecharLSize? Corresponding fitted Gaussian FWHM linear sizepcphys.size.diameterfloatnullableClOptical class (G2)meta.code.classchar