J/A+A/578/A74ivo://CDS.VizieR/J/A+A/578/A74doi:10.26093/cds/vizier.35780074CDSGonzalez-Martin O.Masegosa J.Marquez I.Rodriguez-Espinosa J.M.,Acosta-Pulido J.A.Ramos Almeida C.Dultzin D.Hernandez-Garcia L.,Ruschel-Dutra D.Alonso-Herrero A.2017-11-06T12:23:13Z2015-11-03T14:02:15ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleigalaxiesinfrared-sourcesMost of the optically classified low-ionisation, narrow emission-line regions (LINERs) nuclei host an active galactic nucleus (AGN). However, how they fit into the unified model (UM) of AGN is still an open question. The aims of this work are to study at mid-infrared (mid-IR) (1) the Compton-thick nature of LINERs (i.e. hydrogen column densities of N_H_>1.5x10^24^cm^-2^) and (2) the disappearance of the dusty torus in LINERs predicted from theoretical arguments. We have compiled all the available low spectral-resolution, mid-IR spectra of LINERs from the InfraRed Spectrograph (IRS) onboard Spitzer. The sample contains 40 LINERs. We have complemented the LINER sample with Spitzer/IRS spectra of PGQSOs, Type-1 Seyferts (S1s), Type-2 Seyferts (S2s), and StarBurst (SB) nuclei. We studied the AGN compared to the starburst content in our sample using different indicators: the equivalent width of the polycyclic aromatic hydrocarbon at 6.2{mu}m, the strength of the silicate feature at 9.7{mu}m, and the steepness of the mid-IR spectra. We classified the spectra as SB-dominated and AGN-dominated, according to these diagnostics and compared the average mid-IR spectra of the various classes. Moreover, we studied the correlation between the 12{mu}m luminosity, {nu}L_{nu}_(12{mu}m), and the 2-10keV energy band X-ray luminosity, L_X_(2-10keV).2015A&A...578A..74Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/578/A74CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/648/111 : Chandra sources near AGNs (Levenson+, 2006)J/MNRAS/443/1999 : X-ray spectral analysis of AGNs (Brightman+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/578/A74https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/578/A74http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/578/A74https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/578/A74https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/578/A74http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/578/A74GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/578/A74/table1 (Sample and results)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/578/A74/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/578/A74/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/578/A74/table1?GETtext/xml+votable180.050000true14.453666730.35244440.0055555555555555566/650 764 1008 2214 2320 3506 4447 4511 5091 5715 5751 5799 5816 5995 6034 7132 7214 7241 7374 7424 7602 7869 7998 8071 8085 8106 8299 8922 8941 9018 9194 10162 10364 10472 10475 10691 10752 10817 10856 11027 11029 11263 11457 11668 11829 12018 12241 12380 13522 17141 18212 18524 19433 19611 19730 19746 19932 21450 22721 25083 25742 25790 25907 25965 26267 26310 26365 26509 26902 27349 27604 27714 27765 27767 27773 27862 27914 27936 28035 28039 28060 28123 28184 28356 31158 34273 34471 34534 34881 35623 35993 36194 36785 36896 38139 38268 38390 38653 38704 38868 39836 40221 40777 41586 42027 43233 43339 43626 43677 43806 43877 43925 44660 44988 45222 45587 45735 46399 46568 46615 46811 46987 47047 47078 49042https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/578/A74?format=asciiInfrareddefaultJ/A+A/578/A74/table1Sample and resultsNameTarget namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTypeObject typesrc.classcharThickThickness (1)meta.codecharl_logLXLimit flag on logLXmeta.code.errorcharlogLXLogarithm of the intrinsic X-ray luminosity in the 2-10keV bandlog(1e-07W)phys.luminosity;em.X-rayfloatlogL12umLogarithm of the mid-IR luminosity obtained with Spitzer at 12umlog(1e-07W)phys.luminosity;em.IRfloatl_logLMIRLimit flag on logLMIRmeta.code.errorcharlogLMIR? Mid-IR luminosity obtained with ground-based observationslog(1e-07W)phys.luminosity;em.IRfloatnullablen_logLMIR[*] * when presented here for the first time, using proprietary CanariCam/GTC observationsmeta.notecharlog(L20/L30)Mid-IR steepness expressed as the ratio between the mid-IR luminosity at 20 and 30umphys.luminosity;em.IR.15-30um;arith.ratiofloattau9.7Silicate attenuation strength at 9.7umphys.absorption.opticalDepthdoublee_tau9.7rms uncertainty on tau9.7stat.errorfloatEW(PAH6.2)Equivalent width of the PAH features at 6.2um0.1nmspect.line.eqWidth;em.IR.4-8umfloate_EW(PAH6.2)rms uncertainty on EW(PAH6.2um)0.1nmstat.errorfloatEW(PAH11.3)Equivalent width of the PAH features at 11.3um0.1nmspect.line.eqWidth;em.IR.8-15umfloate_EW(PAH11.3)rms uncertainty on EW(PAH11.3um)0.1nmstat.errorfloatClassClassification according to the EW(PAH 6.2) and the tau9.7 (PAH-vs-tau9.7) (2)meta.codecharSteepClassification according to the steepness of mid-IR spectrum (i.e. log(L20/L30)) (2)meta.codecharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from Simbad (right ascension part)degpos.eq.ra;meta.main_DEPositions from Simbad (declination part)degpos.eq.dec;meta.main