J/MNRAS/445/955ivo://CDS.VizieR/J/MNRAS/445/955doi:10.26093/cds/vizier.74450955CDSBest P.N.Ker L.M.Simpson C.Rigby E.E.Sabater J.2024-08-14T20:18:36Z2015-09-23T15:05:21ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleiradio-galaxiesredshiftedThis paper presents the first measurement of the radio luminosity function of 'jet-mode' (radiatively inefficient) radio-AGN out to z=1, in order to investigate the cosmic evolution of radio-AGN feedback. Eight radio source samples are combined to produce a catalogue of 211 radio-loud AGN with 0.5<z<1.0, which are spectroscopically classified into jet-mode and radiative-mode (radiatively efficient) AGN classes. Comparing with large samples of local radio-AGN from the Sloan Digital Sky Survey, the cosmic evolution of the radio luminosity function of each radio-AGN class is independently derived. Radiative-mode radio-AGN show an order of magnitude increase in space density out to z~1 at all luminosities, consistent with these AGN being fuelled by cold gas. In contrast, the space density of jet-mode radio-AGN decreases with increasing redshift at low radio luminosities (L_1.4GHz_<~10^24^W/Hz) but increases at higher radio luminosities. Simple models are developed to explain the observed evolution. In the best-fitting models, the characteristic space density of jet-mode AGN declines with redshift in accordance with the declining space density of massive quiescent galaxies, which fuel them via cooling of gas in their hot haloes. A time delay of 1.5-2Gyr may be present between the quenching of star formation and the onset of jet-mode radio-AGN activity. The behaviour at higher radio luminosities can be explained either by an increasing characteristic luminosity of jet-mode radio-AGN activity with redshift (roughly as (1+z)^3^) or if the jet-mode radio-AGN population also includes some contribution of cold-gas-fuelled sources seen at a time when their accretion rate was low. Higher redshifts measurements would distinguish between these possibilities.2014MNRAS.445..955Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/445/955CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/216/173 : Bright extragalactic radio sources at 2.7 GHz (Wall+, 1985)J/MNRAS/404/1719 : CoNFIG sample II (Gendre+, 2010)J/MNRAS/416/1900 : CENSORS + other 1.4GHz sources (Rigby+, 2011)J/MNRAS/346/627 : CENSORS (Combined EIS-NVSS Survey) catalog (Best+, 2003)J/MNRAS/366/1265 : CENSORS infrared imaging (Brookes+, 2006)J/MNRAS/385/1297 : CENSORS spectroscopic observations (Brookes+, 2008)J/MNRAS/416/1900 : CENSORS + other 1.4GHz sources (Rigby+, 2011)J/MNRAS/421/3060 : Subaru/XMM Deep Field radio imaging. III. (Simpson+, 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/445/955https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/445/955http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/445/955https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/445/955https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/445/955http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/445/955GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/445/955/tablea1 (The properties of the 211-source combined sample used in the analysis of this paper)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/445/955/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/445/955/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/445/955/tablea1?GETtext/xml+votable180.050000true85.651083349.85197220.0055555555555555566/392 936 1521 2315 2322 3918 4285 4352 4366 4376 4406 4490 4681 4825 4827 4849 4852 4854 4860 4862 5086 5209 5298 5306 5432 5439 5485 5553 5595 5631 5719 5806 5920 6097 6343 6472 6618 7268 7299 7438 8484 8528 8812 8858 8915 9230 9252 9268 9437 9655 9707 9710 9992 10049 10051-10052 10206 10239 10432 10877 10906 10939 11073 11216 11551 11562 11603 11615 11667 11813 12010 12047 15067 16034 16041 16044-16045 16047 16253 17407 17443 17677 17679 17688 17690 17763 17783 18040 18112 19177 20435-20436 20438-20439 20441 20444 24116 25472 25810 26011 26031 26033 26195 26256 26499 27017 27238 27392 27408 27532 27613 27672 27796 27815 27934 27955 27984 28043 28059 28216 28460 28530 28574 28581 31405 32892 33010 33180 35482 35666 36431 40245-40247 40252-40253 40288 40290-40291 40296-40297 42648 44859 46437 48256 48484 48493 48504 485299.276497240453405e-25 9.276497240453405e-25https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/445/955?format=asciiOpticalRadiodefaultJ/MNRAS/445/955/tablea1The properties of the 211-source combined sample used in the analysis of this paperSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSurveySurvey (1)meta.notecharSourceSource namemeta.id;meta.maincharf_Source[o] o: observed in the new WHT observations (see table B1 - flag added at CDS)meta.codecharS1.4[0.0002/22] Flux density at 1.4GHzJyphot.flux.density;em.radio.750-1500MHzdoublez[0.5/1] Redshiftsrc.redshiftfloatn_z[PS] Photometric or Spectroscopic redshiftmeta.notecharalpha[0.5/1.7]? Spectral index {alpha}spect.indexfloatnullablelogL[23.4/28.9] Luminositylog(W.Hz**-1)phys.luminosityfloatClassClassification: "Radiative-mode", "Jet-mode", "Quasar (radiative-mode)", or "Unclassified"src.classchar_RAPositions from Simbad or original catalogs (right ascension part)degpos.eq.ra;meta.main_DEPositions from Simbad or original catalogs (declination part)degpos.eq.dec;meta.main