J/ApJS/187/64ivo://CDS.VizieR/J/ApJS/187/64doi:10.26093/cds/vizier.21870064CDSGrupe D.Komossa S.Leighly K.M.Page K.L.2017-12-15T10:54:53Z2010-06-01T13:50:52ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleispectral-energy-distributionvisible-astronomyWide-band photometryultraviolet-photometryx-ray-sourcesWe report Swift observations of a sample of 92 bright soft X-ray selected active galactic nuclei (AGNs). This sample represents the largest number of AGNs observed to study the spectral energy distribution (SED) of AGNs with simultaneous optical/UV and X-ray data. The principal motivation of this study is to understand the SEDs of AGNs in the optical/UV to X-ray regime and to provide bolometric corrections which are important in determining the Eddington ratio L/L_Edd_. In particular, we rigorously explore the dependence of the UV-EUV contribution to the bolometric correction on the assumed EUV spectral shape. We find strong correlations of the spectral slopes {alpha}_X_ and {alpha}_UV_ with L/L_Edd_.2010ApJS..187...64Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/187/64CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/127/156 : Soft X-Ray-Selected AGNs complete sample (Grupe+, 2004)J/ApJ/633/L77 : SWIFT/BAT detections of AGN (Markwardt+, 2005)J/ApJ/663/81 : SED of hard X-ray selected AGN in XMDS (Polletta+, 2007)J/ApJ/681/113 : Swift BAT survey of AGNs (Tueller+, 2008)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/187/64https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/187/64http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/187/64https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/187/64https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/187/64http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/187/64GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/187/64/table1 (List of soft X-ray selected AGNs observed by Swift)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/187/64/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/187/64/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/187/64/table1?GETtext/xml+votable180.050000true1.5812520.2030560.0055555555555555566/4473 5355 5731 5746 6009 6028 7216 7246 7484 7512 7539 8299 8812 8922 8941 9018 9099 9194 9333 9452 9470 9750 9811 10162 10265 10269 10927 10950 11104 11668 11779 11901 12002 12380 16529 16533 16671 16853 17192 17408 19883 26148 26233 26292 26509 27862 28356 28471 28517 28527 28589 28654 33662 33930 33950 33968 34034 34352 34370 34414 34430 34458 34531 35018 35240 35386 35445 35542 35611 35704 35743 35966 36256 36480 36775 36786 40902 45531 46124 46143 46281 46299 46395 46522 46544 46568 46572 46578 46581 46662 46847 46967https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/187/64?format=asciiX-rayUVOpticaldefaultJ/ApJS/187/64/table3Results of the Swift-UVOT photometryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqRunning index numbermeta.id;meta.mainintNameObject namemeta.idcharSegmentSegment(s)meta.id;obscharVmag? Swift/UVOT V band magnitude (1)magphot.mag;em.opt.Vfloatnullablee_Vmag? Uncertainty in Vmagmagstat.error;phot.mag;em.opt.VfloatnullableBmag? Swift/UVOT B band magnitude (1)magphot.mag;em.opt.Bfloatnullablee_Bmag? Uncertainty in Bmagmagstat.error;phot.mag;em.opt.BfloatnullableUmag? Swift/UVOT U band magnitude (1)magphot.mag;em.opt.Ufloatnullablee_Umag? Uncertainty in Umagmagstat.error;phot.mag;em.opt.UfloatnullableW1mag? Swift/UVOT UVW1 band (260nm) magnitude (1)magphot.mag;em.UVfloatnullablee_W1mag? Uncertainty in UVW1magmagstat.error;phot.magfloatnullableM2mag? Swift/UVOT UVM2 band (220nm) magnitude (1)magphot.mag;em.UVfloatnullablee_M2mag? Uncertainty in UVM2magmagstat.error;phot.mag;em.IR.4-8umfloatnullableW2mag? Swift/UVOT UVW2 band (180nm) magnitude (1)magphot.mag;em.UVfloatnullablee_W2mag? Uncertainty in UVW2magmagstat.error;phot.magfloatnullableJ/ApJS/187/64/table4Spectral analysis of the Swift/XRT dataSegmentSegment(s)meta.id;obscharModel? Model code (1)meta.code;stat.param;meta.modelledintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqRunning index numbermeta.id;meta.mainintNameObject namemeta.idcharalphaSX? Soft X-ray spectral slopespect.indexfloatnullableE_alphaSX? Upper limit uncertainty in alphaSXstat.error;stat.maxfloatnullablee_alphaSX? Lower limit Uncertainty in alphaSXstat.errorfloatnullableEbreak? Energy breakkeVem.energyfloatnullableE_Ebreak? Upper limit uncertainty in EbreakkeVstat.error;stat.maxfloatnullablee_Ebreak? Lower limit Uncertainty in EbreakkeVstat.errorfloatnullablealphaHX? Hard X-ray spectral slopespect.indexfloatnullableE_alphaHX? Upper limit uncertainty in alphaHXstat.error;stat.maxfloatnullablee_alphaHX? Lower limit Uncertainty in alphaHXstat.errorfloatnullablelogF? Log unabsorbed rest-frame 0.2-2 keV X-ray fluxlog(W.m**-2)phot.flux;em.X-rayfloatnullablechi2? Reduced {chi}^2^; {chi}^2^/dofstat.fit.chi2floatnullabledof? degrees of freedomstat.fit.dofintnullableCR? Swift/XRT count rate (0.2-10keV)ct/sphot.count;em.X-rayfloatnullablee_CR? Uncertainty in CRct/sstat.errorfloatnullableHR? Hardness ratio (2)phot.flux;arith.ratiofloatnullablee_HR? Uncertainty in HRstat.errorfloatnullableJ/ApJS/187/64/table5Properties of the Spectral Energy DistributionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqRunning numbermeta.id;meta.mainintNameObject identificationmeta.idcharSegmentSegment number(s)meta.id;obscharalphaXX-ray slope in the 0.2-2.0keV energy rangespect.indexfloate_alphaXUncertainty on AlphaXstat.errorfloatalphaUVOptical/UV slope corrected for Galactic reddeningspect.indexfloate_alphaUVUncertainty on AlphaUVstat.errorfloatalphaOXUV-to-X-ray spectra slope {alpha}_ox_, as defined by Tananbaum et al. (1979ApJ...234L...9T)spect.indexfloatalphaUVc? Optical/UV slope corrected for Galactic and intrinsic reddeningspect.indexfloatnullablee_alphaUVc? Uncertainty on AlphaUVcstat.errorfloatnullablealphaOXc? UV-to-X-ray spectra slope {alpha}_ox_, corrected for Galactic & intrinsic reddeningspect.indexfloatnullablelogLxRest-frame 0.2-2.0keV X-ray luminositylog(W)phys.luminosity;em.X-rayfloatlogLbbbLuminosity in the BBB (big-blue-bump) emission (1)log(W)phys.luminosity;em.opt.BfloatL/LEddL/L_Edd_ ratiophys.luminosity;arith.ratiofloatlogLbbb2Luminosity using the broken power-law model as shown in Figure 1log(W)phys.luminosity;em.opt.Bfloatlog5100Luminosity at 5100{AA}log(W)phys.luminosityfloatlogLbbbc? logLbbb corrected for intrinsic reddeninglog(W)phys.luminosity;em.opt.BfloatnullableL/LEddc? L/LEdd corrected for intrinsic reddeningphys.luminosity;arith.ratiofloatnullablelog5100c? log5100 corrected for intrinsic reddeninglog(W)phys.luminosityfloatnullableJ/ApJS/187/64/table1List of soft X-ray selected AGNs observed by SwiftrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqRunning numbermeta.id;meta.mainintprimaryNameObject identificationmeta.idcharRAJ2000Optical hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Optical degree of declination (J2000)pos.eq.dec;meta.mainzRedshiftsrc.redshiftfloatNGalactic column density from Dickey & Lockman HI maps (1990ARA&A..28..215D)1e+20cm**-2phys.columnDensity;pos.galacticfloatalphaXX-ray energy spectral slope in the 0.2-2.0keV band (1)arith.grad;instr.bandwidthfloatu_alphaXUncertainty on alphaXmeta.code.errorfloatlogFxRest-frame 0.2-2.0keV X-ray flux (1)log(W.m**-2)phot.flux;em.X-rayfloatE(B-V)Galactic reddening E(B-V) from Schlegel et al. (1998ApJ...500..525S)magphot.color.excessfloatFWHM(Hb)FWHM(H{beta}) from Grupe et al. (2004, Cat. <J/AJ/127/156>) (2)km/sspect.line.widthintMBHBlack hole mass M_BH_ (3)MsolMassphys.massfloatHa/Hb? H{alpha}/H{beta} ratiophys.abund;arith.ratiofloatnullablef_Ha/Hb[h] from Lira et al. (1999MNRAS.305..109L)meta.codecharE(B-V)i? Intrinsic reddening E(B-V)-intr derived from the Balmer decrementmagphot.color.excessfloatnullableSimbadNameSimbad column added by the CDSmeta.idcharNEDSimbad column added by the CDScharJ/ApJS/187/64/table2Observation summary of the Swift-XRT and UVOT observationsTb? UVOT exposure time in B filterstime.duration;obs.exposure;em.opt.BintnullableSeqRunning numbermeta.id;meta.mainintf_Tv[ij] Flag on Tv (5)meta.codecharf_Tb[ij] Flag on Tb (5)meta.codecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject identificationmeta.idcharn_Name[bdefh] Note on Swift observation (1)meta.notecharTargetTarget identification numbermeta.idintf1[c] Flag on RX J0148.3-2758 (2)meta.codecharSegment? Segment number (3)meta.id;obsintnullablef2[g] Flag on MCG+08-23-067 (4)meta.codecharTsStarting date of observationstime.epochnullableTeEnding date of observationstime.epochnullableTxrt? XRT exposure timestime.duration;obs.exposureintnullableTv? UVOT exposure time in V filterstime.duration;obs.exposure;em.opt.VintnullableTu? UVOT exposure time in U filterstime.duration;obs.exposure;em.opt.Uintnullablef_Tu[ij] Flag on Tu (5)meta.codecharTw1? UVOT exposure time in UVW1 filter (260nm)stime.duration;obs.exposureintnullablef_Tw1[oij] Flag on Tw1 (5)meta.codecharTm2? UVOT exposure time in UVM2 filter (220nm)stime.duration;obs.exposureintnullablef_Tm2[ij] Flag on Tm2 (5)meta.codecharTw2? UVOT exposure time in UVW2 filter (180nm)stime.duration;obs.exposureintnullablef_Tw2[ij] Flag on Tw2 (5)meta.codechar