J/ApJS/224/26ivo://CDS.VizieR/J/ApJS/224/26doi:10.26093/cds/vizier.22240026CDSMao P.Urry C.M.Massaro F.Paggi A.Cauteruccio J.Kunzel S.R.2018-11-15T11:15:40Z2017-04-28T10:08:40ZCDS support team

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

cds-question@unistra.frspectral-energy-distributionactive-galactic-nucleibl-lacertae-objectsredshiftedastronomical-object-identificationradio-sourcesinfrared-photometryx-ray-sourcesgamma-ray-astronomyWe combined multi-wavelength data for blazars from the Roma-BZCAT catalog and analyzed hundreds of X-ray spectra. We present the fluxes and spectral energy distributions (SEDs), in 12 frequency bands from radio to {gamma}-rays, for a final sample of 2214 blazars. Using a model-independent statistical approach, we looked for systematic trends in the SEDs; the most significant trends involved the radio luminosities and X-ray spectral indices of the blazars. We used a principal component analysis (PCA) to determine the basis vectors of the blazar SEDs and, in order to maximize the size of the sample, imputed missing fluxes using the K-nearest neighbors method. Using more than an order of magnitude more data than was available when Fossati et al. first reported trends of SED shape with blazar luminosity, we confirmed the anti-correlation between radio luminosity and synchrotron peak frequency, although with greater scatter than was seen in the smaller sample. The same trend can be seen between bolometric luminosity and synchrotron peak frequency. Finally, we used all of the available blazar data to determine an empirical SED description that depends only on the radio luminosity at 1.4GHz and the redshift. We verified that this statistically significant relation was not a result of the luminosity-luminosity correlations that are natural in flux-limited samples (i.e., where the correlation is actually caused by the redshift rather than the luminosity).2016ApJS..224...26Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/224/26CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/274 : The Roma BZCAT - 5th edition (Massaro+, 2015)VIII/92 : The FIRST Survey Catalog, Version 2014Dec17 (Helfand+ 2015)IX/43 : 1SXPS Swift X-ray telescope point source catalogue (Evans+ 2014)V/139 : The SDSS Photometric Catalog, Release 9 (Adelman-McCarthy+, 2012)VIII/81 : Sydney University Molonglo Sky Survey (SUMSS V2.1) (Mauch+ 2008)VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)J/ApJS/218/23 : Fermi LAT third source catalog (3FGL) (Acero+, 2015)J/ApJS/215/14 : WISE {gamma}-ray blazar radio candidates (D'Abrusco+, 2014)J/ApJS/213/3 : Low-frequency flat spectrum sources (LORCAT) (Massaro+, 2014)J/ApJS/209/10 : UGSs. V. kernel approach (Massaro+, 2013)J/ApJS/207/4 : Unidentified {gamma}-ray sources. III. Radio (Massaro+, 2013)J/ApJS/206/12 : Blazars with {gamma}-ray counterparts. I. (D'Abrusco+, 2013)J/ApJ/743/171 : The 2LAC catalog (Ackermann+, 2011)J/ApJ/740/98 : Synchroton peak for blazars and radio galaxies (Meyer+, 2011)J/ApJ/716/30 : SED of Fermi bright blazars (Abdo+, 2010)J/A+A/495/691 : Multifreq. catalog of blazars, Roma-BZCAT (Massaro+, 2009)J/A+A/488/867 : Synchrotron peak frequency of 135 AGN (Nieppola+, 2008)J/A+A/445/441 : SED of BL Lacertae objects (Nieppola+, 2006)J/A+A/375/739 : Hard X-ray properties of blazars (Donato+, 2001)J/MNRAS/323/757 : Deep X-Ray Radio Blazar Survey (DXRBS). II. (Landt+, 2001)J/ApJS/94/551 : The first EGRET catalog (Fichtel+ 1994)http://www.asdc.asi.it/bzcat/ : The Roma BZCAT home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/224/26https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/224/26http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/224/26https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/224/26https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/224/26http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/224/26GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/224/26/table2 (The complete data for all blazars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/224/26/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/224/26/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/224/26/table2?GETtext/xml+votable180.050000true0.73816694-0.413083060.0055555555555555566/1 47 48 60 80 110 128 180 304 307 342 376 438 532 548 550 574 579 594 597 600 611 677 694 700 716 804 808 861 900 911 975 991 1005 1019 1051 1128 1129 1154 1210 1222 1225 1312 1419 1509 1546 1550 1584 1767 1782 1787 1875 1909 1988 2087 2098 2107 2124 2140 2143 2158 2179 2228 2235 2273 2280 2294 2340 2394 2397 2400 2404 2441 2448 2469 2470 2531 2574 2614 2621 2628 2661 2671 2710 2750 2784 2836 2867 2949 3128 3402 3423 3428 3675 3712 3820 3886 3971 4027 4054 4098 4122 4141 4143 4190 4210 4255 4260 4350 4352 4405 4407 4409 4436 4446 4472 4477 4486 4572 4601 4606 4612 4627 4634 4641 4672 4684 4686 4695 4696 4741 4750 4754 4770 4824 4831 4850 4861 4866 4880 4882 4892 4914 4923 4940 4963 4968 4974 4992 5001 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46918 46921 46932 46948 46951 46964 46965 46966 46969 46994 47001 47014 47016 47050 47057 47080 47095 47106 47112 47151 47154 47255 47319 47327 47341 47353 47354 47375 47419 47512 47540 47570 47605 47642 47649 47656 47672 47805 47847 47922 47941 47943 47972 48023 48091 48108 48110 48123 48137 48142 48207 48238 48284 48300 48306 48316 48320 48352 48362 48388 48407 48443 48460 48477 48483 48486 48496 48507 48582 48589 48595 48598 48610 48629 48676 48708 48716 48757 48767 48797 48798 48805 48814 48846 48878 48883 48893 48926 48965 48974 48985 48989 48995 49019 49069 49071 49084 49141https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/224/26?format=asciiRadioInfraredX-rayGamma-raydefaultJ/ApJS/224/26/table2The complete data for all blazarsWISEWISE identifier (JHHMMSS.ss+DDMMSS.s) if anymeta.id.crosscharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBZCATBZCAT identifier (BZ{B/Q}JHHMM+DDMM)meta.id;meta.mainchar3FGLFermi identifier (JHHMM.m+DDMM) if anymeta.id.crosscharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainz[0.03/6.9] Roma-BZCAT redshiftsrc.redshiftfloatL1.4GHz[39.7/45.5] NVSS/FIRST 1.4GHz luminosity; in erg/slog(1e-07W)phys.luminosity;em.radiofloatL5GHz[40.5/45.9]? Roma-BZCAT 5GHz luminosity; in erg/slog(1e-07W)phys.luminosity;em.radiofloatnullableL22um[42.8/48.4]? WISE W4 (22um) luminosity; in erg/slog(1e-07W)phys.luminosity;em.IR.15-30umfloatnullableL12um[42.9/48.1]? WISE W3 (12um) luminosity; in erg/slog(1e-07W)phys.luminosity;em.IR.8-15umfloatnullableL4.6um[43.1/48.3]? WISE W2 (4.6um) luminosity; in erg/slog(1e-07W)phys.luminosity;em.IRfloatnullableL3.4um[43/49.2]? WISE W1 (3.4um) luminosity; in erg/slog(1e-07W)phys.luminosity;em.IRfloatnullableLz[43.6/47.5]? SDSS z-band luminosity; in erg/slog(1e-07W)phys.luminosity;em.IRfloatnullableLi[43.6/47.4]? SDSS i-band luminosity; in erg/slog(1e-07W)phys.luminosity;em.optfloatnullableLr[43.6/48.7]? SDSS r-band luminosity; in erg/slog(1e-07W)phys.luminosityfloatnullableLg[43.6/49.2]? SDSS g-band luminosity; in erg/slog(1e-07W)phys.luminosity;em.optfloatnullableLx[42.2/47.3]? Swift/XRT X-ray luminosity; in erg/slog(1e-07W)phys.luminosity;em.X-rayfloatnullableLGam[42.9/48.7]? Fermi/LAT gamma-ray luminosity; in erg/slog(1e-07W)phys.luminosity;em.gammafloatnullablealpha[-4.2/4]? X-ray photon indexspect.indexfloatnullablegamma[1.2/3.1]? Gamma-ray photon indexspect.indexfloatnullable1SXPSDisplay 1SXPS data (Evans+, 2014, IX/43) within 5"meta.ref.urlintnullableRCatDisplay NVSS (VIII/65) and FIRST (VIII/92) data within 5"meta.ref.urlintnullableSDSSDisplay the SDSS-DR9 data (V/139) within 2"meta.ref.urlcharSloanDisplay the online SDSS data for the nearest objectmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharNEDNED column added by the CDSmeta.ref.urlchar