J/MNRAS/498/1278ivo://CDS.VizieR/J/MNRAS/498/1278doi:10.26093/cds/vizier.74981278CDSChen S.Jarvela E.Crepaldi L.Zhou M.Ciroi S.Berton M.Kharb P.,Foschini L.Gu M.La Mura G.Vietri A.2024-08-21T20:15:51Z2020-09-29T13:13:34ZCDS support team

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

cds-question@unistra.frseyfert-galaxiesradio-galaxiesgalaxy-classification-systemsWe present the results of new radio observations carried out with the Karl G. Jansky Very Large Array C-configuration at 5.5GHz for a sample of southern narrow-line Seyfert 1 galaxies (NLS1s). This work increases the number of known radio-detected NLS1s in the southern hemisphere, and confirms that the radio emission of NLS1s is mainly concentrated in a central region at kpc-scale and only a few sources show diffuse emission. In radio-quiet NLS1s, the radio luminosity tends to be higher in steep-spectrum sources and be lower in flat-spectrum sources, which is opposite to radio-loud NLS1s. This may be because the radio emission of steep NLS1s is dominated by misaligned jets, AGN-driven outflows, or star formation superposing on a compact core. Instead the radio emission of flat NLS1s may be produced by a central core which has not yet developed radio jets and outflows. We discover new NLS1s harboring kpc-scale radio jets and confirm that a powerful jet does not require a large-mass black hole to be generated. We also find sources dominated by star formation. These NLS1s could be new candidates in investigating the radio emission of different mechanisms.2020MNRAS.498.1278Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/498/1278CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/596/A95 : SNLS1 galaxies spectral nuclear properties (Schmidt, 2016)J/A+A/603/A100 : 37GHz observations of NLS1 galaxies (Lahteenmaki+, 2017)J/other/NewA/54.30 : NLS1s 2MASS and WISE photometry (Chen+, 2017)J/A+A/614/L1 : NLS1 at 37GHz (Lahteenmaki+, 2018)J/A+A/615/A13 : Narrow line Seyfert 1 galaxies spectra (Schmidt+, 2018)J/A+A/615/A167 : Catalog of NLS1s galaxies in 6dFGS survey (Chen+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/498/1278https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/498/1278http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/498/1278https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/498/1278https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/498/1278http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/498/1278GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/498/1278/table1 (The radio measurements at 5.5GHz of the southern NLS1 sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/498/1278/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/498/1278/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/498/1278/table1?GETtext/xml+votable180.050000true0.1677083-5.6836250.0055555555555555566/17231 17359 17479 17678 17721 17826 20716 20867 21226 22535 22632 22696 22740 22743 23064 23128 25168 25261 25707 25992 26154 26859 27191 29346 29906 30795 30867 30873 30963 34672 35787 36116 36183 36316 36337 36591 36749 36775 40172 40309 40837 40885 40939 40941 44448 44924 44969 48213 486929.276497240453405e-25 3.644338263669406e-24https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/498/1278?format=asciiOpticalRadiodefaultJ/MNRAS/498/1278/table1The radio measurements at 5.5GHz of the southern NLS1 sampleSimbadNameSimbad column added by the CDSmeta.idcharzRedshiftsrc.redshiftfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (JHHMM+DDMM)meta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainScaleScalekpc/arcsecinstr.scalefloatl_CmajLimit flag on Cmajmeta.code.errorcharCmajCore major axiskpcphys.angSizefloatl_CminLimit flag on Cminmeta.code.errorcharCminCore minor axiskpcphys.angSize;srcfloatCPA? Core position angledegpos.posAngintnullablel_SintLimit flag on Sintmeta.code.errorcharSintIntegrated flux density at 5.5GHzuJyphot.flux.density;em.radio.3-6GHzfloate_SintIntegrated flux density at 5.5GHz erroruJystat.errorfloatSpPeak flux density at 5.5GHzuJy/beamphot.flux.density;em.radio.3-6GHz;stat.maxfloate_SpPeak flux density at 5.5GHz erroruJy/beamstat.error;src.spTypefloatl_logLintLimit flag on logLintmeta.code.errorcharlogLintIntegrated luminosity at 5.5GHzlog(1e-07W)phys.luminosity;em.radio.3-6GHzfloate_logLintIntegrated luminosity at 5.5GHz errorlog(1e-07W)stat.errorfloatlogLpPeak luminosity at 5.5GHzlog(1e-07W)phys.luminosity;em.radio.3-6GHz;stat.maxfloate_logLpPeak luminosity at 5.5GHz errorlog(1e-07W)stat.errorfloatJ/MNRAS/498/1278/table2The radio and optical properties of the southern NLS1 samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (JHHMM+DDMM)meta.id;meta.maincharR5.5Radio loudness based on 5.5GHz fluxphot.flux.density;em.radio.3-6GHzfloate_R5.5Radio loudness based on 5.5GHz flux errorstat.errorfloatRL/RQ[RL RQ] Radio classification based on 5.5GHz fluxphot.flux.density;em.radio.3-6GHzcharfcFlux concentrationphys.size;arith.ratiofloate_fcFlux concentration errorstat.errorfloatC/D[CD] Concentration classificationmeta.code.classcharalpha5-6In-band spectral index between 5 and 6GHzspect.indexfloate_alpha5-6In-band spectral index between 5 and 6GHz errorstat.errorfloatF/S[FS] Spectral classification based on in-band spectral indexmeta.code.classcharS4400AFlux density in optical B-band (in 10^-17^erg/c/cm^2^/{AA})1e-19W.m**-2.nm**-1phot.flux.density;em.optfloate_S4400AFlux density in optical B-band (in 10^-17^erg/c/cm^2^/{AA}) error1e-19W.m**-2.nm**-1stat.errorfloatlogMBHBlack hole masslog(solMass)phys.massfloate_logMBHBlack hole mass errorlog(solMass)stat.errorfloatJ/MNRAS/498/1278/table3The radio measurements of 21 NLS1s detected at 1.4 GHzInstInstrumentmeta.id;instrcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (JHHMM+DDMM)meta.id;meta.maincharS1.4Flux density at 1.4GHzmJyphot.flux.density;em.radio.750-1500MHzfloate_S1.4Flux density at 1.4GHz errormJystat.errorfloatlogL1.4Luminosity at 1.4GHzlog(1e-07W)phys.luminosity;em.radio.750-1500MHzfloate_logL1.4Luminosity at 1.4GHzlog(1e-07W)stat.errorfloatR1.4Radio loudness based on 1.4GHz fluxphot.flux;arith.ratiofloate_R1.4Radio loudness based on 1.4GHz flux errorstat.errorfloatRL/RQ[RL RQ] Radio classification based on 1.4GHz fluxphot.flux.density;em.radio.750-1500MHzcharalpha1-5Spectral index between 1.4 and 5.5GHzspect.indexfloate_alpha1-5Spectral index between 1.4 and 5.5GHz errorstat.errorfloatF/S[FS] Spectral classification based on spectral index between 1.4 and 5.5GHzmeta.code.classchar