J/ApJ/740/98ivo://CDS.VizieR/J/ApJ/740/98doi:10.26093/cds/vizier.17400098CDSMeyer E.T.Fossati G.Georganopoulos M.Lister M.L.2023-12-19T10:45:02Z2013-03-13T09:36:13ZCDS support team

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

cds-question@unistra.frradio-galaxiesactive-galactic-nucleibl-lacertae-objectsredshiftedWe revisit the concept of a blazar sequence that relates the synchrotron peak frequency ({nu}_peak_) in blazars with synchrotron peak luminosity (L_peak_, in {nu}L_{nu}_) using a large sample of radio-loud active galactic nuclei. We present observational evidence that the blazar sequence is formed from two populations in the synchrotron {nu}_peak_-L_peak_ plane, each forming an upper edge to an envelope of progressively misaligned blazars, and connecting to an adjacent group of radio galaxies having jets viewed at much larger angles to the line of sight. When binned by jet kinetic power (L_kin_; as measured through a scaling relationship with extended radio power), we find that radio core dominance decreases with decreasing synchrotron L_peak_, revealing that sources in the envelope are generally more misaligned. We find population-based evidence of velocity gradients in jets at low kinetic powers (~10^42^-10^44.5^erg/s), corresponding to Fanaroff-Riley (FR) I radio galaxies and most BL Lac objects. These low jet power "weak-jet" sources, thought to exhibit radiatively inefficient accretion, are distinguished from the population of non-decelerating, low synchrotron-peaking (LSP) blazars and FR II radio galaxies ("strong" jets) which are thought to exhibit radiatively efficient accretion. The two-population interpretation explains the apparent contradiction of the existence of highly core-dominated, low-power blazars at both low and high synchrotron peak frequencies, and further implies that most intermediate synchrotron peak sources are not intermediate in intrinsic jet power between LSP and high synchrotron-peaking (HSP) sources, but are more misaligned versions of HSP sources with similar jet powers.2011ApJ...740...98Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/740/98CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/241 : The 2dF QSO Redshift Survey (Croom+ 2004)J/ApJS/188/405 : Fermi-LAT first source catalog (1FGL) (Abdo+, 2010)J/ApJ/710/764 : Extended radio emission in MOJAVE blazars (Kharb+, 2010)J/ApJS/175/97 : CGRaBS: survey of {gamma}-ray blazar (Healey+, 2008)J/AJ/135/2453 : BL Lac objects from SDSS and FIRST (Plotkin+, 2008)J/ApJS/171/376 : MOJAVE. III. VLA 1.4GHz images (Cooper+, 2007)J/A+A/472/699 : ROXA: multi-frequency sample of blazars (Turriziani+, 2007)J/A+A/470/787 : High energy peaked BL Lacs spectros. (Piranomonte+, 2007)J/A+A/434/385 : X/radio data of high energy peaked BL Lacs (Giommi+, 2005)J/MNRAS/348/937 : The CLASS blazar survey. III. (Caccianiga+, 2004)J/A+A/401/927 : The HRX-BL Lac sample (Beckmann+, 2003)J/A+A/399/469 : Parkes Quarter-Jy Flat-Spectrum Sample. II. (Hook+, 2003)J/MNRAS/329/877 : The CLASS blazar survey. II. (Caccianiga+, 2002)J/A+A/386/97 : The Parkes quarter-Jy flat-spectrum sample (Jackson+, 2002)J/MNRAS/326/1455 : The CLASS blazar survey. I. (Marcha+, 2001)J/MNRAS/323/757 : Deep X-Ray Radio Blazar Survey (DXRBS). II. (Landt+, 2001)J/ApJ/525/127 : RGB of BL Lacertae objects (Laurent-Muehleisen+, 1999)J/AJ/115/1253 : Deep X-Ray Radio Blazar Survey (DXRBS). I. (Perlman+ 1998)J/MNRAS/216/173 : Bright extragalactic radio sources at 2.7 GHz (Wall+, 1985)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/740/98https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/740/98http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/740/98https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/740/98https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/740/98http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/740/98GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/740/98/table2 (TEX combined blazar source list)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/740/98/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/740/98/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/740/98/table2?GETtext/xml+votable180.050000true1.557875-6.39314720.005555555555555556Cone search capability for table J/ApJ/740/98/table3 (Radio galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/740/98/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/740/98/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/740/98/table3?GETtext/xml+votable180.050000true277.38237548.74615830.0055555555555555566/18 60 532 556 579 911 1263 1509 1546 1701 2214 2227 2331 2414 2836 3096 3803 3820 3886 4229 4255 4436 4572 4594 4685 4695-4696 4770 4805 4820 4964 5154 5371 5423 5448 5483 5546 5597-5598 5630 5693 5723 5767 5806 6004 6015 6018 6021 6067 6088 6101 6164 6252 6362 6368 6448 6507 6532 6641 6647 6934 6948 7061 7181 7235 7296 7351 7354 7371 7389 7426 7548 7570 7642 7896 7911 7969 8031 8147 8264 8299 8487 8515 8615 8659 8675 8705 8717 8809 8945 9353 9442 9460 9468 9566 9612 9618 9632-9633 9676 9705 9711 9723 9900 9925 9998 10004 10163 10183 10198 10249 10422 10548 10572 10715 10800 10978 11094 11116 11430 11639 11649 11736 11845 12241 12352 12547 12604 12619 13320 13410 13496 13529 13564 13707 13927 15045 15067 15269 15286 15936 16059 16093 16281 16298 17184 17351 17516 17579 17857 17909 17979 18017 18035 18624 18661 18669 19088 19101 19190 19271 19370 19398 19432 19543 19831 20099 20184 20355 20624 20777 21266 21358 21768 21935 21960 21968 21972 22363 22396 22658 22917 22976 23099 23121 23127 23416 24014 24084 24300 24608 24775 25132 25196 25255 25302 25630 26131 26292 26297 26303 26374 27060 27310 27423 27514 27524 27714 27765 27773 28083 28167 28249 28315 28454 28479 28492 28495 28517 28575 29570 29714 31211 31430 31451 31509 31664 31894 32311 32394 32764 34013 34123 34209 34264 34572 34675 35786 36100 40692 43262 43822 44247 44805 44908 46142 46964 47014 47057 47154 48595 48846 48965 49071https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/740/98?format=asciiRadiodefaultJ/ApJ/740/98/table2TEX combined blazar source listrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameBlazar namemeta.id;meta.maincharz[0.00/2.559] Redshiftsrc.redshiftfloatSimbadNameSimbad column added by the CDSmeta.idcharnullableRAJ2000[0/23] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[0/82] Degree of Declination (J2000)pos.eq.dec;meta.mainOpt[BQ12] Optical spectral type (2)src.classcharf_z[*] '*' if z estimated from optical magnitudemeta.codecharlognu[12.28/17.06] Log best-fit synchrotron peak frequencylog(Hz)em.freqfloatlogLp[41.19/47.71] Log best-fit synchrotron peak luminosity (in units of erg/s)log(1e-07W)phys.luminosityfloatlogL300[37.29/44.57] Log 300MHz luminosity (erg/s)log(1e-07W)phys.luminosity;em.radiofloatlogLkin[41.7/45.85] Log jet kinetic power (erg/s)log(1e-07W)phys.luminosityfloatMeth[SD /VLA/both] Extended radio flux estimate method (SD=spectral decomposition)meta.notecharf_Meth[dg] estimate of extended flux (3)meta.codecharRef[a-i, ] Reference(s) (4)meta.ref;pos.framecharNEDNED column added by the CDSmeta.ref.urlcharJ/ApJ/740/98/table3Radio galaxiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameBlazar namemeta.id;meta.maincharf_Name[a] synchrotron peak from model fit (1)meta.codecharRAJ2000[0/23] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainSimbadSimbad column added by the CDSmeta.ref.urlcharNEDNED column added by the CDSmeta.ref.urlcharDEJ2000[0/82] Degree of Declination (J2000)pos.eq.dec;meta.mainOpt[BQ12] Optical spectral type (2)src.classcharz[0.00/2.559] Redshiftsrc.redshiftfloatlognu[12.28/17.06] Log best-fit synchrotron peak frequencylog(Hz)em.freqfloatE_lognu? Positive error on lognulog(Hz)stat.error;stat.maxfloatnullablee_lognu? Negative error on lognulog(Hz)stat.errorfloatnullablelogLp[41.19/47.71] Log best-fit synchrotron peak luminosity (in units of erg/s)log(1e-07W)phys.luminosityfloatlogL300[37.29/44.57] Log 300MHz luminosity (erg/s)log(1e-07W)phys.luminosity;em.radiofloatlogLkin[41.7/45.85] Log jet kinetic power (erg/s)log(1e-07W)phys.luminosityfloat