J/A+A/684/A19ivo://CDS.VizieR/J/A+A/684/A19doi:10.26093/cds/vizier.36840019CDSSlaus B.Smolcic V.Ivezic Z.Fotopoulou S.Willott C.J.Pendo P.,Vignali C.Chiappetti L.Pierre M.2024-11-29T20:01:46Z2024-03-28T14:24:46ZCDS support team

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

cds-question@unistra.frradio-galaxiesradio-continuum-emissionradio-sourcesWe model the evolution of active galactic nuclei (AGN) by constructing their radio LFs. We used a set of surveys of varying area and depth, namely, the deep COSMOS survey of 1916 AGN sources; the wide, shallow 3CRR, 7C, and 6CE surveys, together containing 356 AGN; and the intermediate XXL-North and South fields consisting of 899 and 1484 sources, respectively. We also used the CENSORS, BRL, Wall & Peacock, and Config surveys, respectively consisting of 150, 178, 233, and 230 sources. Together, these surveys account for 5446 AGN sources and constrained the LFs at high redshift and over a wide range of luminosities (up to z~=3 and log(L/W/Hz){in}[22,29]). We concentrated on parametric methods within the Bayesian framework, which allowed us to perform model selection between a set of different models. By comparing the marginalised likelihoods and both the Akaike information criterion and the Bayesian information criterion, we show that the luminosity-dependent density evolution (LDDE) model fits the data best, with evidence ratios varying from 'strong' (>10) to 'decisive' (>100), according to the Jeffreys' interpretation. The best-fitting model gives insight into the physical picture of AGN evolution, where AGN evolve differently as a function of their radio luminosity. We determined the number density, luminosity density, and kinetic luminosity density as a function of redshift, and we observed a flattening of these functions at higher redshifts, which is not present in simpler models. We explain these trends by our use of the LDDE model. Finally, we divided our sample into subsets according to the stellar mass of the host galaxies in order to investigate a possible bimodality in evolution. We found a difference in LF shape and evolution between these subsets. All together, these findings point to a physical picture where the evolution and density of AGN cannot be explained well by simple models but require more complex models either via AGN sub-populations, where the total AGN sample is divided into sub-samples according to various properties, such as optical properties and stellar mass, or via luminosity-dependent functions.2024A&A...684A..19Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/684/A19CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIX/52 : XXL Survey. DR2 (Chiappetti+, 2018)J/A+A/602/A1 : VLA-COSMOS 3 GHz Large Project (Smolcic+, 2017)J/A+A/684/A18 : XLSSC NIKA2 sample images (Adam+, 2024)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/684/A19https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/684/A19http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/684/A19https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/684/A19https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/684/A19http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/684/A19GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/684/A19/catalog (Stellar mass catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/684/A19/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/684/A19/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/684/A19/catalog?GETtext/xml+votable180.050000true149.960752.47427780.0055555555555555565/1215 6814 11539 11542-11545 11548 6/245 936-937 939 942 946 1129 2111 2136 2225 2292 2304 2311 2313 2315 2317-2318 2321-2322 2340 2569 2704 2866 2951 4376 4629 4822 4825-4827 4829 4831 4835 4837 4848-4850 4852 4855-4856 5027 5032 5034 5086 5130 5311 5413 5553 5617 5671 5758 6889 7061 8555 8675 8809 8989 9009 9230 9273 9655 9992 10004 10229 10236-10237 10374 10485 10529 10601 10743 10839 10877 11073 11365 11606-11607 11611 11615 12593 12796 13120 13455 13663 13707 13855 15045 15354 15358 16035 16043-16044 18365 18387 19745 19935 20030 22505 24023 24247 27245 27247 27344 27765 27872 27934 28063 28279 31940 31951 32394 46133 46151 46154-46155 46162-46163 46166-46167 46185 46188-46189 46196 46200 46338 463449.276497240453405e-25 9.276497240453405e-25https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/684/A19?format=asciiRadiodefaultJ/A+A/684/A19/catalogStellar mass cataloguerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the radio source (COSMOSVLA3 JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharzBest available redshift for the sourcesrc.redshiftfloatS1400MHzSource flux at 1400 MHzmJyphot.flux.density;em.radio.750-1500MHzdoublealphaSpectral index of the source (1)spect.indexfloatlogMstarLog stellar mass of the sourcelog(solMass)phys.massfloatSurveyOriginal survey (2)meta.notechar_RAPositions from Name and Simbad (right ascension part)degpos.eq.ra;meta.mainnullable_DEPositions from Name and Simbad (declination part)degpos.eq.dec;meta.mainnullable