J/MNRAS/439/1648ivo://CDS.VizieR/J/MNRAS/439/1648doi:10.26093/cds/vizier.74391648CDSAsmus D.Hoenig S.F.Gandhi P.Smette A.Duschl W.J.2024-08-08T20:12:39Z2014-03-20T07:52:44ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleistar-atlasesgalaxiesinfrared-sourcesphotometryseyfert-galaxiesinfrared-photometryWe present the first subarcsecond-resolution mid-infrared (MIR) atlas of local active galactic nuclei (AGN). Our atlas contains 253 AGN with a median redshift of z=0.016, and includes all publicly available MIR imaging performed to date with ground-based 8-m class telescopes, a total of 895 independent measurements. Of these, more than 60% are published here for the first time. We detect extended nuclear emission in at least 21% of the objects, while another 19% appear clearly point-like, and the remaining objects cannot be constrained. Where present, elongated nuclear emission aligns with the ionization cones in Seyferts. Subarcsecond resolution allows us to isolate the AGN emission on scales of a few tens of parsecs and to obtain nuclear photometry in multiple filters for the objects. Median spectral energy distributions (SEDs) for the different optical AGN types are constructed and individual MIR 12 and 18um continuum luminosities are computed. These range over more than six orders of magnitude. In comparison to the arcsecond-scale MIR emission as probed by Spitzer, the continuum emission is much lower on subarcsecond scales in many cases. The silicate feature strength is similar on both scales and generally appears in emission (absorption) in type I (II) AGN. However, the polycyclic aromatic hydrocarbon emission appears weaker or absent on subarcsecond scales. The differences of the MIR SEDs on both scales are particularly large for AGN/starburst composites and close-by (and weak) AGN. The nucleus dominates over the total emission of the galaxy only at luminosities >~10^44^erg/s. The AGN MIR atlas is well suited not only for detailed investigation of individual sources but also for statistical studies of AGN unification.2014MNRAS.439.1648Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/439/1648CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/610/128 : NIR colors of hard X-ray-selected AGN (Watanabe+, 2004)J/ApJ/680/130 : Mid-IR colors of AGNs in the MUSYC ECDF-S (Cardamone+, 2008)J/ApJ/705/14 : Seyfert galaxies in the mid-IR (Deo+, 2009)J/ApJ/725/2270 : Mid-IR emission lines in AGNs (Pereira-Santaella+, 2010)J/ApJS/208/24 : Spitzer MIR AGN survey. I. (Lacy+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/439/1648https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/439/1648http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/439/1648https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/439/1648https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/439/1648http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/439/1648GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/439/1648/table1 (Basic object properties and nuclear 12 & 18um continuum fluxes/ratios)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/439/1648/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/439/1648/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/439/1648/table1?GETtext/xml+votable180.050000true66.50291694-57.200278060.005555555555555556Cone search capability for table J/MNRAS/439/1648/table2 (Photometric parameters for all nuclear measurements)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/439/1648/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/439/1648/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/439/1648/table2?GETtext/xml+votable180.050000true66.50291694-57.200278060.0055555555555555566/18 650 1701 4116 4381 4439 4447 4993 5091 5116 5202 5975-5976 6098 7552 7606 7659 7869 7959 8195 8264 8299 8492 8675 8922 9770 10265 10355 10364 10454 10465 10475 10817 10839 10856 10912 10924-10925 10927 10977 11027 11029 11457 11512 12241 12306 12335 12380 13564 13707 14744 14858 16301 16434 16655 16690 16712 17075 17183 17264 17369 17525 17727 17748 17754 17795 17814 17819 17850 18017 18242 18365 18432 18484 18524 18683 18714 18838 18895 18897 18935 19283 19373 19376 19433 19611 19619 19730 19746 19932 20000 20489 21016 21036 21450 22654 22721 22890 22912 22976 23167 23269 23323 23469 24842 25035 25083 25182 25518 25610 25790 25890 25907 26028 26091 26148 26264 26292 26303 26313 26338 26365 26393 26547 26937 27030 27191 27255 27382 27426 27512 27515 27699 27714 27719 27721 27765 27767 27773 27909 27914 27945 28075 28167 28173 28184 28221 28249 28259 28495 28535 29795 30140 31080 31158 31352 33034 33716 33930 33954 33958 34099 34104 34273 34294 34318 34343 34412 34493 34531 34534 34695 34737 34881 34913 35246 35447 35608 35623 35691 35993 36005 36158 36668 36765 36785-36786 36861 36896 37650 38268 38479 38653 38704 38853 38868 38887 38948 39182 39487 39836 40221 40410 40777 40818 41586 41982 42016 42027 43233 43242 43262 43339 43625 43634 43677 43748 43806 43877 43925 44507 44551 44650 44660 45587 45735 45779 45816 45883 46079 46399 46442 46481 46568 46615 46715 46811 46987 47047 47107 47120 47154 47169 47325 47415 490421.1035784871212851e-20 1.6553710307751707e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/439/1648?format=asciiOpticalInfrareddefaultJ/MNRAS/439/1648/table1Basic object properties and nuclear 12 & 18um continuum fluxes/ratiosrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCommon object namemeta.id;meta.maincharRAJ2000Right ascension (J2000.0)degpos.eq.ra;meta.mainDEJ2000Declination (J2000.0)degpos.eq.dec;meta.mainzRedshiftsrc.redshiftfloatDistDistance (1)Mpcpos.distancefloatClassOptical classification (2)meta.code.classcharDoubt[F/T] Uncertain AGN flag (3)meta.code.errorcharBATID? BAT ID from 9-month catalog (from Winter et al., 2009ApJ...690.1322W)meta.idintnullableExtClNuclear MIR extension classification (4)meta.code.classcharl_F12um[F/T] Limit flag for the nuclear 12um flux (5)meta.code.errorcharF12umNuclear 12um restframe continuum flux (6)mJyphot.flux.density;em.IR.8-15umfloate_F12um? 1-sigma uncertainty of the 12um fluxmJystat.errorfloatnullablel_F18um[F/T] Limit flag for the nuclear 18um flux (7)meta.code.errorcharF18um? Nuclear 18um restframe continuum fluxmJyphot.flux.density;em.IR.15-30umfloatnullablee_F18um? 1-sigma uncertainty of the 18um continuum fluxmJystat.errorfloatnullableDunrSize constraint on unresolved emission (8)pcpos.distanceintN/I? Flux ratio of nuclear to intermediate scale (9)phot.flux;arith.ratiofloatnullableN/L? Flux ratio of nuclear to large scale (10)phot.flux;arith.ratiofloatnullableSimbadNameSimbad column added by the CDSmeta.idcharJ/MNRAS/439/1648/table2Photometric parameters for all nuclear measurementsNameCommon object namemeta.id;meta.maincharCalMJD? Calibrator star obervational MJDdtime.epochdoublenullableObsDatObervational datetime.epochcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000.0)degpos.eq.ra;meta.mainDEJ2000Declination (J2000.0)degpos.eq.dec;meta.mainFilterFilter namemeta.id;instr.filtercharlambcFilter central wavelength (observing frame)umem.wl.central;instr.filterfloatHWHMFilter half-width-half-maximumumspect.line.widthfloatInstInstrument used to obtain datainstr.setupcharScalePixel size of field of viewarcsec/pixphys.angSize;instr.fovfloatExpTimTotal exposure time on-sourcestime.duration;obs.exposureintChpModChop & nod modeinstr.setupcharChpThwChop throwarcsecpos;arith.diffintChpAngChop angle East of Northdegpos.posAngintInsRotInstrument rotation angle on sky, W of Ndeginstr.paramintProgIDObservation programme IDmeta.id;obscharCalStrCalibrator star namemeta.idcharCalDatCalibrator star obervational datemeta.idcharObsMJDObervational MJDdtime.epochdoubleCnvFacConversion factor measured from the CalmJy/ctarith.factordoublee_CnvFac1-sigma uncertainty of the Conv. factormJy/ctstat.errordoubleCalFlx? Calibrator star fluxmJyphot.flux.densitydoublenullablel_FGau[F/T] Limit flag on the Gauss flux (1)meta.code.errorcharFGauNuclear flux from 2D Gauss fittingmJyphot.flux.densityfloate_FGau? 1-sigma uncertainty of the Gauss fluxmJystat.errorfloatnullablel_FPSF[F/T] Limit flag on the PSF flux (2)meta.code.errorcharFPSFNuclear flux from PSF scalingmJyphot.flux.densityfloate_FPSF? 1-sigma uncertainty of the PSF fluxmJystat.errorfloatnullableCalMaj? Calibrator Star major axis FWHMarcsecphys.angSizefloatnullableCalMin? Calibrator Star minor axis FWHMarcsecphys.angSizefloatnullableCalPA? Calibrator Star position angle E of Ndegmeta.idintnullableamaj? Major axis FWHM (constrained to <=1arcsec)arcsecphys.angSizefloatnullablebmaj? Minor axis FWHM (constrained to <=1arcsec)arcsecphys.angSizefloatnullablePA? Position angle of Gauss fit East of Northdegpos.posAng;meta.modelledintnullable