J/ApJ/728/58ivo://CDS.VizieR/J/ApJ/728/58doi:10.26093/cds/vizier.17280058CDSBurlon D.Ajello M.Greiner J.Comastri A.Merloni A.Gehrels N.2017-10-03T05:12:50Z2012-10-22T11:42:40ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleix-ray-sourcesWe derive and analyze the active galactic nuclei (AGNs) absorption distribution using a complete sample of AGNs detected by Swift-BAT in the first three years of the survey. The fraction of Compton-thick AGNs represents only 4.6% of the total AGN population detected by Swift-BAT. However, we show that once corrected for the bias against the detection of very absorbed sources the real intrinsic fraction of Compton-thick AGNs is 20^+9^_-6_%. We proved for the first time (also in the Burst Alert Telescope (BAT) band) that the anti-correlation of the fraction of absorbed AGNs and luminosity is tightly connected to the different behavior of the X-ray luminosity functions (XLFs) of absorbed and unabsorbed AGNs. This points toward a difference between the two subsamples of objects with absorbed AGNs being, on average, intrinsically less luminous than unobscured ones. Moreover, the XLFs show that the fraction of obscured AGNs might also decrease at very low luminosity.2011ApJ...728...58Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/728/58CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/528/A122 : SwiftFT catalog (Puccetti+, 2011)J/A+A/510/A48 : Palermo Swift-BAT Hard X-ray Catalogue (Cusumano+, 2010)J/ApJ/699/603 : Evolution of Swift/BAT blazars (Ajello+, 2009)J/A+A/495/421 : Catalog of AGN in XMM-Newton archive (CAIXA) (Bianchi+, 2009)J/ApJ/681/113 : Swift BAT survey of AGNs (Tueller+, 2008)J/ApJ/678/102 : BAT X-ray survey. I. (Ajello+, 2008)J/A+A/487/119 : AGN in XMM-Newton Hard Bright Survey (Della Ceca+, 2008)J/A+A/474/473 : XMM-LSS survey: AGN classifications (Garcet+, 2007)J/ApJ/633/L77 : SWIFT/BAT detections of AGN (Markwardt+, 2005)J/MNRAS/360/782 : X-ray-selected normal galaxies (Georgantopoulos+, 2005)J/A+A/309/81 : X-ray properties of AGN (Wang+, 1996)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/728/58https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/728/58http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/728/58https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/728/58https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/728/58http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/728/58GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/728/58/table5 (Swift sample of AGNs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/728/58/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/728/58/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/728/58/table5?GETtext/xml+votable180.050000true1.620.1520.0055555555555555566/815 893 941 953 1583 1919 2221 2564 4439 4488 4540 4834 5149 5975 5976 5989 5990 6014 6097 6212 6466 6752 6920 6977 7166 7184 7246 7361 7424 7628 7642 7869 7921 8029 8071 8299 8921 8922 9005 9733 9894 10118 10348 10630 10707 10847 10912 10925 10927 10977 10984 11006 11158 11382 11416 11490 11898 12025 13511 13707 13720 13832 14858 15351 16301 16690 17075 17408 17448 17525 17727 17749 17754 17795 17814 17837 18365 18484 18524 18683 18794 19070 19283 19367 19767 19883 19940 20000 20079 20201 20379 20489 20556 21036 21237 21450 21785 21967 21996 22626 22708 22890 22975 23167 23323 24842 25035 25182 25610 25907 25965 26148 26393 26547 26650 26861 27699 27721 27767 27976 28075 28259 28275 28350 28517 28535 28563 28595 28639 29795 31158 33034 33398 33716 33924 33930 34104 34294 34318 34412 34531 34669 34730 34881 34913 35049 35184 35246 35284 35447 35608 35623 35899 36005 36015 36158 36210 36257 36765 36785 36786 36896 38268 38653 38704 38868 38948 39485 40221 40258 40410 40819 40838 43262 43634 43677 43803 43860 43877 44017 44507 44551 44660 45222 45500 45735 45782 45883 46442 46615 46831 46987 47047 47120 47154 47169 47245 49001 49042https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/728/58?format=asciiX-raydefaultJ/ApJ/728/58/table5Swift sample of AGNsNameSIMBAD other namemeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSWIFTSWIFT name (JHHMM.m+DDMM)meta.id;meta.maincharRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainFlux[0.76/49.77] BAT flux in the 15-55keV energy band in 10^-11^erg/cm2/s unitsaW.cm**-2meta.unit;phot.fluxfloate_FluxFlux uncertaintyaW.cm**-2stat.error;phot.fluxfloatS/N[5/187.6] Signal-to-noise ratiostat.snrfloatTypeOptical type (GALAXY, LINER, Sy, Sy1, Sy1.2, Sy1.5, Sy1.8, Sy1.9 or Sy2) (1)src.classcharz[0.001/0.3] Redshift from Ajello et al., 2009, Cat. J/ApJ/699/603src.redshiftfloatGamma[1.47/3.44] X-ray photon index {Gamma}meta.code;spect.index;em.X-rayfloatE_GammaPositive error on Gammastat.error;stat.maxfloate_GammaNegative error on Gammastat.errorfloatl_logNH[>~] Limit flag on logNHmeta.code.errorcharlogNH? Absorbing column density (N_H_)log(cm**-2)phys.columnDensityfloatnullabler_logNH? Reference (2)meta.ref;pos.frameintnullableXmCross-match with other Swift-BAT catalogs within 1'meta.ref.urlintnullableSimbadSimbad column added by the CDSmeta.refchar