J/MNRAS/510/4909ivo://CDS.VizieR/J/MNRAS/510/4909doi:10.26093/cds/vizier.75104909CDSWilliams D.R.A.Pahari M.Baldi R.D.Mchardy I.M.Mathur S.,Beswick R.J.Beri A.Boorman P.Aalto S.Alberdi A.Argo M.K.,Dullo B.T.Fenech D.M.Green D.A.Knapen J.H.Marti-Vidal I.,Moldon J.Mundell C.G.Muxlow T.W.B.Panessa F.Perez-Torres M.,Saikia P.Shankar F.Stevens I.R.Uttley P.2025-02-24T20:16:49Z2025-01-07T13:47:18ZCDS support team

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

cds-question@unistra.frgalaxiesactive-galactic-nucleiinfrared-sourcesradio-galaxiesseyfert-galaxiesblack-holesvisible-astronomyx-ray-sourcesastrometryspectroscopyphotometryAll 280 of the statistically complete Palomar sample of nearby (< 120 Mpc) galaxies {delta} > 20{deg} have been observed at 1.5 GHz as part of the LeMMINGs e-MERLIN legacy survey. Here, we present Chandra X-ray observations of the nuclei of 213 of these galaxies, including a statistically complete sub-set of 113 galaxies in the declination range 40{deg} < {delta} < 65{deg}. We observed galaxies of all optical spectral types, including 'active' galaxies [e.g. low-ionization nuclear emission line regions (LINERs) and Seyferts] and 'inactive' galaxies like H II galaxies and absorption line galaxies (ALG). The X-ray flux limit of our survey is 1.65*10^-14^ erg/s/cm^2^ (0.3-10 keV). We detect X-ray emission coincident within 2 arcsec of the nucleus in 150/213 galaxies, including 13/14 Seyferts, 68/77 LINERs, 13/22 ALGs and 56/100 H II galaxies, but cannot completely rule out contamination from non-AGN processes in sources with nuclear luminosities <~ 10^39^ erg/S. We construct an X-ray Luminosity function (XLF) and find that the local galaxy XLF, when including all active galactic nucleus (AGN) types, can be represented as a single power law of slope -0.54 +/- 0.06. The Eddington ratio of the Seyferts is usually 2-4 decades higher than that of the LINERs, ALGs, and H II galaxies, which are mostly detected with Eddington ratios <~ 10^-3^. Using [O III] line measurements and black hole masses from the literature, we show that LINERs, H II galaxies and ALGs follow similar correlations to low luminosities, suggesting that some 'inactive' galaxies may harbour AGN.2022MNRAS.510.4909Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/510/4909CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/98/477 : Optical spectral atlas of Seyfert nuclei (Ho+ 1995)J/ApJS/112/315 : Spectroscopic parameters of Seyfert nuclei (Ho+ 1997)J/ApJS/183/1 : Catalog of central stellar velocity dispersions (Ho+, 2009)J/MNRAS/500/4749 : LeMMINGs II e-MERLIN survey of nearby galaxies (Baldi+,2021)J/ApJ/831/134 : BH masses & host galaxy dispersion vel. (van den Bosch,2016)Chandra data : https://heasarc.gsfc.nasa.gov/db-perl/W3Browse/w3browse.plChandra observation home page : http://cxc.harvard.edu/ciao/NED extragalactic database : https://ned.ipac.caltech.edu/https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/510/4909https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/510/4909http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/510/4909https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/510/4909https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/510/4909http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/510/4909GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/510/4909/table1 (Basic properties of our X-ray sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/510/4909/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/510/4909/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/510/4909/table1?GETtext/xml+votable180.050000true0.99520.750.0055555555555555566/700 816 932 975 1701 1707 2121 2130 2142 2155 2214 2230 2251 2282 2311 2320 2324 2354 2362 2372 2374 2380 2383 2409 2504 2564 2622 2687 2709 2774 2777 3042 3078 3085 3389 3446 3506 3511 3558 4447 4471 4511 4891 4989-4990 5061 5067 5125 5142 5182-5183 5196 5200 5202 5241 5244 5342 5428-5429 5469 5482 5492 5504 5545 5572 5581 5587 5589 5596 5599 5610 5628-5629 5631 5634 5639 5715 5751 5793 5818 5966 5975-5976 5978 5982 5995 6003 6010 6012-6013 6034 6037 6087 6093 6098 6103 6448 6605 6619 6649 7030 7132 7214 7225 7241 7287 7355 7374 7385-7386 7424 7426 7457 7498 7550 7602 7604 7606 7624 7642 7655 7659 7743 7878 7896 7941 7957 7986 7997 8010 8042 8067 8085 8106 8113 8169 8173 8922 8944 9437 10402 10454 10475 10490 10518 10523 10628 10637 10650 10674 10723 10727 10755 10761 10781 10817 10841 10856 10878 10888 10892 10900 10905 10911-10912 10924-10925 10927 10930 10935 10941 10954 10977 10979-10980 10982 10986 10990-10991 11000 11006 11027 11127 11227 11246 11263 11372 11375 11389 11392 11394 11434-11435 11443 11446 11448 11457 11460 11566 11582 11639 11726 11738 11772 11791 11824 11961 12005 12018-12019 12025 12122 13124 13336 13401 13489 13522 13672 15056 15592 15955 16098 16108 16120 20225-20226 20270 23921 28015 28023 28123 28141-28142 28254 28267 28435 28463 28491 28495-28496 28498 28515-28517 28521 28524 28529 28535 28538 28612 28631 28651 28653 32545https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/510/4909?format=asciiX-rayOpticalInfraredRadiodefaultJ/MNRAS/510/4909/table1Basic properties of our X-ray samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGalaxy name (Galaxy)meta.id;meta.maincharPalomarLink to see the catalog of central stellar velocity dispersionsmeta.ref.urlcharRAJ2000Right ascension (J2000) (RA)degpos.eq.ra;meta.mainDEJ2000Declination (J2000) (Dec)degpos.eq.dec;meta.mainGLATGalactic latitude {delta} (GalLat)degpos.galactic.latfloatDDistance of the galaxy (Dist) (1)Mpcpos.distance;src.class.starGalaxyfloatID? Chandra observation ID (ObsID)meta.id;obsintnullableExpTime? The exposure length (Exposure)sphys.size;obs.exposureintnullablef_ID[C C+Y] Flag indicates if this Chandra observation is new or not (Sample) (2)meta.codecharSigThe detection significance (Sig) (3)stat.fit.goodness;instr.saturationcharl_logMBHUpper limit flag of logMBHmeta.code.errorcharlogMBH? A black hole mass measurement taken from the literature where possible (Mass) (4)log(solMass)phys.massfloatnullablee_logMBH? Mean error on logMBH (errMass)log(solMass)stat.errorfloatnullablel_logL[OIII]Upper limit flag of logL[OIII]meta.code.errorcharlogL[OIII]? Line luminosity of [O III] in erg/s (O[III]) (5)log(1e-07W)em.line.OIIIfloatnullableAGNThe new AGN classification given to the source based on the AGN re-classification scheme (AGN) (6)src.classcharHTypeHubble types simplified version (Hubble) (7)src.morph.typecharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/MNRAS/510/4909/table2Flux and luminosity measurements obtained from Chandra X-ray spectral fittingl_logFX1Upper limit flag of logFX1meta.code.errorcharlogFX1The logarithm of the flux in the 0.3-10.0 keV band (logFlux0.3-10keV)log(mW.m**-2)phot.flux;em.X-rayfloate_logFX1? Mean 1{sigma}error on logFX1 (errlogFlux0.3-10keV)log(mW.m**-2)stat.errorfloatnullablel_logFX2Upper limit flag of logFX2meta.code.errorcharlogFX2? The logarithm of the flux in the 0.3-2.0 keV band (logFlux0.3-2keV)log(mW.m**-2)phot.flux;em.X-rayfloatnullablee_logFX2? Mean 1{sigma}error on logFX2 (errlogFlux0.3-2keV)log(mW.m**-2)stat.errorfloatnullablelogFX3? The logarithm of the flux in the 2.0-10.0 keV band (logFlux2-10keV)log(mW.m**-2)phot.flux;em.X-rayfloatnullablee_logFX3? Mean 1{sigma}error on logFX3 (errlogFlux2-10keV)log(mW.m**-2)stat.errorfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlchare_logLX1? Mean 1{sigma}error on logLX1 (errlogLum0.3-10keV)log(1e-07W)stat.errorfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGalaxy name (Galaxy)meta.id;meta.maincharPalomarLink to see the catalog of central stellar velocity dispersionsmeta.ref.urlcharlogLX1The logarithm of the X-ray luminosity in the 0.3-10.0 keV band (logLum0.3-10keV)log(1e-07W)phys.luminosity;em.X-rayfloatl_logLX2Upper limit flag of logLX2meta.code.errorcharlogLX2? The logarithm of the X-ray luminosity in the 0.3-2.0 keV band (logLum0.3-2keV)log(1e-07W)phys.luminosity;em.X-rayfloatnullablee_logLX2? Mean 1{sigma}error on logLX2 (errlogLum0.3-2keV)log(1e-07W)stat.errorfloatnullablelogLX3? The logarithm of the X-ray luminosity in the 2.0-10.0 keV band (logLum2-10keV)log(1e-07W)phys.luminosity;em.X-rayfloatnullablee_logLX3? Mean 1{sigma}error on logLX3 (errlogLum2-10keV)log(1e-07W)stat.errorfloatnullableSig? The detection significance (Sig) (1)stat.fit.goodness;instr.saturationfloatnullable