J/A+A/609/A1ivo://CDS.VizieR/J/A+A/609/A1doi:10.26093/cds/vizier.36090001CDSBaldi R.D.Capetti A.Massaro F.2022-01-04T14:18:36Z2018-09-14T12:49:32ZCDS support team

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

cds-question@unistra.frgalaxiescatalogsradio-galaxiesWith the aim of exploring the properties of the class of FR 0 radio galaxies, we selected a sample of 108 compact radio sources, called FR0CAT, by combining observations from the NVSS, FIRST, and SDSS surveys. We included in the catalog sources with redshift <=0.05, with a radio size <=5kpc, and with an optical spectrum characteristic of low-excitation galaxies. Their radio luminosities at 1.4GHz are in the range 10^38^<={nu}L_1.4_<=10^40^erg/s. The FR0CAT hosts are mostly (86%) luminous (-21>=M_r_>=-23) red early-type galaxies with black hole masses 10^8^<=M_BH_<=10^9^M_{sun}_. These properties are similar to those seen for the hosts of FR I radio galaxies, but they are on average a factor ~1.6 less massive. The number density of FR0CAT sources is ~5 times higher than that of FR Is, and thus they represent the dominant population of radio sources in the local Universe. Different scenarios are considered to account for the smaller sizes and larger abundance of FR 0s with respect to FR Is. An age-size scenario that considers FR 0s as young radio galaxies that will all eventually evolve into extended radio sources cannot be reconciled with the large space density of FR 0s. However, the radio activity recurrence, with the duration of the active phase covering a wide range of values and with short active periods strongly favored with respect to longer ones, might account for their large density number. Alternatively, the jet properties of FR 0s might be intrinsically different from those of the FR Is, the former class having lower bulk Lorentz factors, possibly due to lower black hole spins. Our study indicates that FR 0s and FR I/IIs can be interpreted as two extremes of a continuous population of radio sources that is characterized by a broad distribution of sizes and luminosities of their extended radio emission, but shares a single class of host galaxies.2018A&A...609A...1Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/609/A1CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)VIII/92 : FIRST Survey Catalog, Version 2014Dec17 (Helfand+ 2015)II/294 : SDSS Photometric Catalog Release 7 (Adelman-McCarthy+, 2009)J/MNRAS/421/1569 : Properties of 18286 SDSS radio galaxies (Best+, 2012)J/A+A/598/A49 : FRICAT FIRST catalog of FRI radio galaxies (Capetti+, 2017)J/A+A/601/A81 : FRIICAT FIRST catalog of FRII radio galaxies (Capetti+ 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/609/A1https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/609/A1http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/609/A1https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/609/A1https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/609/A1http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/609/A1GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/609/A1/tablea1 (Properties of the FR 0s candidates sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/609/A1/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/609/A1/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/609/A1/tablea1?GETtext/xml+votable180.050000true17.2186772-0.65537890.0055555555555555566/4188 4224 4252 4308 4491 4515 4521 4647 5061 5382 5394 5473 5528 5551 5616 5618 5626 5666 5680 5691 5719 5800 5889 5912 5958-5959 5975 7345 7395 8247 8268 8296-8297 8320 8394 8418 8442 8444 8469 8526 8669 8776 8962 9013 9026 9029 9261 9264 9368 9429 9470-9471 9839 9922 9931 9956 10182 10332 10339 10364 10435 10525 10868 10914 10959 11001 11238 11405 17495 17522 17999 18008-18009 22397 25910 25977 26060 26210 26219 26318 26375 26495 26507 26584 26590 26951 27096 27225 27248 27413 27491 27527 27543 27643 27910 28075 28334 28414-28415 28494 28548 28655 31631 31643 32483 32491 326839.276497240453405e-25 3.5010283109654867e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/609/A1?format=asciiRadiodefaultJ/A+A/609/A1/tablea1Properties of the FR 0s candidates sampleSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSDSSSDSS name (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharzRedshiftsrc.redshiftfloatF1.4GHzNVSS 1.4 GHz flux densitymJyphot.flux.density;em.radio.750-1500MHzfloatF[OIII]? [OIII] flux in 10^-17^erg/cm^2^/s1e-20W.m**-2phot.flux;spect.linefloatnullablermagSDSS DR7 r band AB magnitudemagphot.mag;em.opt.RfloatDnDn(4000) indexspect.indexfloatsigma*Stellar velocity dispersionkm/sphys.veloc.dispersionintCrConcentration indexphys.size;arith.ratiofloatlogLrlogarithm of the radio luminositylog(1e-07W)phys.luminosityfloatlogL[OIII]logarithm of the [OIII] line luminositylog(1e-07W)phys.luminosity;em.line.OIII;spect.linefloatlogMBHlogarithm of the black hole masslog(solMass)phys.massfloat_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main