J/A+A/668/A67ivo://CDS.VizieR/J/A+A/668/A67doi:10.26093/cds/vizier.36680067CDSAudibert A.Dasyra K.M.Papachristou M.Fernandez-Ontiveros J.A.,Ruffa I.Bisigello L.Combes F.Salome P.Gruppioni C.2023-01-18T06:51:59Z2022-12-05T08:02:08ZCDS support team

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

cds-question@unistra.frradio-galaxiesmillimeter-astronomysubmillimeter-astronomyco-line-emissionTo evaluate the role of radio activity in galaxy evolution, we designed a large archival CO survey of radio galaxies (RGs) to determine their molecular gas masses at different epochs. We used a sample of 120 RGs representative of the NVSS 1.4GHz survey, when flux limited at 0.4Jy. Of those, 66 galaxies belonged to the ALMA Radio-source Catalogue (ARC) of calibrators and had spectral window tunings around CO (1-0), (2-1), (3-2), or (4-3). We reduced their ALMA data, determined their H2 mass contents, and combined the results with similar results for the remaining 54 galaxies from the literature. We found that, while at all epochs the majority of RGs have undetectable reservoirs, there is a rapid increase in the H2 mass content of the CO-detected RGs with z. At 1<z<2.5, one-fourth of the RGs have at least as much molecular gas as simulations would indicate for a typical halo mass of that epoch. These galaxies plausibly have "normal" or even starbursty hosts. Overall, reservoirs of 10^7^<~MH_2_<~10^10^M_{sun}_ are seen at z<0.3, and 10^10^<~MH_2_<~10^12^M_{sun}_ at z>1. Taking into account the completeness correction of the sample, we created the corresponding H_2_ mass functions at 0.005<z<0.3 and 1<z<2.5. The local mass function reveals that the number density of low-z RGs with detectable molecular gas reservoirs is only a little lower (a factor of ~4) than that of pure (or little star-forming) type 1 and 2 AGN in simulations. At 1<z<2.5, there is a significant decrease in the number density of high-z RGs due to the rarity of bright radio galaxies. An estimate for the missing faint RGs would, nonetheless, bring populations close again. Finally, we find that the volume density of molecular gas locked up in the brightest 1/5000-1/7000 RGs is similar in the examined z bins. This result likely indicates that the inflow rate on one hand and the star-formation depletion rate plus the jet-driven expulsion rate on the other hand counteract each other in the most luminous RGs of each epoch.2022A&A...668A..67Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/668/A67CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/668/A67https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/668/A67http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/668/A67https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/668/A67https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/668/A67http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/668/A67GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/668/A67/list (List of fits datacubes)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/668/A67/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/668/A67/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/668/A67/list?GETtext/xml+votable180.050000true14.4536730.352440.0055555555555555566/2214 4448 8199 18778 25742 26100 29675 38277 38347 38817 38916 41310 43828 44554 46773 46798 47375https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/668/A67?format=asciiMillimeterRadiodefaultJ/A+A/668/A67/listList of fits datacubesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintNzNumber of pixels along Z-axismeta.numberintObs.dateObservation datestime.epoch;obsnullablebVRADLower value of VRADm/sphys.veloc;pos.heliocentricdoubleBVRADUpper value of VRADm/sphys.veloc;pos.heliocentricdoubledVRADVRAD resolutionm/sspect.resolutionintsizeSize of FITS fileKibytephys.size;meta.fitsintNameGalaxy namemeta.id;meta.maincharFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitscharSimbadSimbad column added by the CDSmeta.ref.urlchar