J/ApJS/268/23ivo://CDS.VizieR/J/ApJS/268/23CDSFan J.Xiao H.Yang W.Zhang L.Strigachev A.A.Bachev R.S.Yang J.2023-12-27T08:50:17Z2023-12-27T09:29:20ZCDS support team

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

cds-question@unistra.frbl-lacertae-objectsquasarsmagnetic-fieldsredshiftedgamma-ray-astronomyStudies and constraints on the emission region are crucial to the blazar radiation mechanism. Yet previous works have mainly focused on individual sources. In this work, we make use of the largest and the latest spectral energy distribution fitting results in the literature to statistically study the blazar emission region properties in the framework of a one-zone leptonic model. Our results reveal: (1) that flat-spectrum radio quasars (FSRQs) show lower electron energy ({gamma}_p_<~1.6x10^3^) than BL Lacertae objects (BL Lacs) and tend to have a stronger magnetic field (B) and smaller electron-to-magnetic energy ratio (Ue/UB) than BL Lacs; (2) we find that the electromagnetic equipartition would rather happen in the jets of BL Lacs than happen in the jets of FSRQs; (3) there are 682 blazars with a magnetic field weaker than the critical value for generating the Kelvin-Helmholtz instability, thus one-third of the blazars in our sample are able to produce this instability; and (4) the distance (dem) between the emission region and the central black hole is on the scale of ~0.1pc, so the location of the emission region may be evenly distributed inside and outside the broad-line region.2023ApJS..268...23Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/268/23CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIX/67 : Incremental Fermi LAT 4th source cat. (4FGL-DR3) (Fermi-LAT col., 2022)J/ApJ/609/539 : Kinematics of parsec-scale radio jets (Kellermann+, 2004)J/other/ChJAA/8.385 : Superluminal motion in AGN (Zhang+, 2008)J/AJ/138/1874 : MOJAVE. VI. Kinematics of blazar jets (Lister+, 2009)J/ApJ/716/30 : SED of Fermi bright blazars (Abdo+, 2010)J/other/RAA/13.259 : {gamma}-ray Doppler factor for Fermi blazars (Fan+, 2013)J/other/RAA/14.1135 : Doppler factor for a Fermi blazar sample (Fan+, 2014)J/other/Nat/515.376 : Power of relativistic jets in blazars (Ghisellini+, 2014)J/MNRAS/448/1060 : Fermi/LAT broad emission line blazars (Ghisellini+, 2015)J/ApJ/810/L9 : 1.5Jy MOJAVE AGN sample and 3FGL data (Lister+, 2015)J/ApJS/226/20 : X-ray, opt. & radio SEDs of Fermi blazars (Fan+, 2016)J/ApJS/235/39 : Jet properties of {gamma}-ray-loud 3FGL AGNs (Chen, 2018)J/AJ/155/90 : 1996-2009 opt. phot. monitoring for 3C 66A (Fan+, 2018)J/ApJ/866/137 : Bright blazars var. brightness temp. (Liodakis+, 2018)J/A+A/623/A111 : 3C273 polarization over ALMA 1.3mm band (Hovatta+, 2019)J/ApJ/874/43 : MOJAVE. XVII. pc-scale jet kinematics (Lister+, 2019)J/ApJS/247/33 : Fermi LAT fourth source catalog (4FGL) (Abdollahi+, 2020)J/ApJS/253/10 : 12yrs of R-band phot. of the quasar 3C 454.3 (Fan+, 2021)J/ApJ/923/30 : MOJAVE. XVIII. Radio-loud active AGNs (Lister+, 2021)J/ApJS/253/46 : Optical spectroscopy of Fermi blazars (Paliya+, 2021)J/ApJS/260/47 : 19.3yr R-band monitoring of 1ES 2344+514 (Cai+, 2022)J/ApJ/925/97 : Fermi-LAT blazars fundamental parameters (Pei+, 2022)J/ApJ/925/40 : Fermi blazar jet properties (Xiao+, 2022)J/PASJ/74/239 : Radio dichotomy of active galactic nuclei (Xiao+, 2022)J/ApJS/262/18 : SEDs for 4FGL blazars (Yang+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/268/23https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/268/23http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/268/23https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/268/23https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/268/23http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/268/23GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/268/23/table1 (The magnetic field strength and electron energy for 2708 Fermi blazars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/268/23/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/268/23/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/268/23/table1?GETtext/xml+votable180.050000true0.3251039-7.77414440.005555555555555556Cone search capability for table J/ApJS/268/23/table2 (The location of the emission region for 182 blazars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/268/23/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/268/23/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/268/23/table2?GETtext/xml+votable180.050000true1.5992-6.34930.0055555555555555566/29 39 49 60 100 110 143 180 226 250 267 303 342 376 398 438 441 447 465 514 530 532 543 556 579 597 611 615 642 686 700 714 716-717 720 730 743 770 808 817 851 898 911 961 967-968 988 991 1018 1085 1087 1094 1116 1120 1125 1154 1163 1179 1203 1208 1222 1233 1250 1307 1315 1342 1409 1462 1509 1546 1576 1584 1593 1611 1622 1626 1680 1699 1727 1740-1741 1782 1914-1915 1984 1986 1988-1989 2028 2037 2042 2065-2066 2078 2094 2100 2122 2143 2228 2234 2249 2255 2273 2295 2331 2340 2356-2357 2400 2404 2414 2434 2439 2448 2460 2484 2505 2531 2549 2568 2574 2601 2605 2610 2616 2636 2647 2654 2659 2661 2704 2708 2741 2750-2751 2754 2788 2792 2808 2817 2822 2836 2844 2861 2866-2867 2879 2896 2929 2966 3004 3017 3023-3025 3052 3096 3099 3128 3130 3237 3242 3264 3338 3366 3401-3402 3404 3428 3431 3465 3472 3492 3528 3557 3566 3569 3581 3616 3629 3642 3675 3700 3712 3728 3769 3774 3784 3820 3833 3841 3876 3882 3886 3937 3945 3951 3965 3974 4043 4048 4054 4079-4080 4091 4096 4098 4134 4137 4160 4260-4261 4267 4312 4352 4407 4475 4497 4543 4550 4572 4587 4601 4606 4617 4642 4672 4683 4685 4695 4705 4723 4746 4750 4768 4770 4801 4805 4817 4820 4824-4825 4841 4855 4861-4863 4865-4866 4880 4882 4918 4923 4940 4960 4964 4974 4977 4992 5000 5009 5072 5091 5098 5125 5139 5154 5156 5162 5166 5191 5195 5201 5212 5250 5268 5270 5284 5306 5311 5314 5352-5354 5361 5371 5390 5404 5407 5412-5413 5423 5432 5448 5450 5455 5458 5460 5462 5483 5491 5516 5521-5523 5536 5546 5553 5589 5597 5614 5616 5649 5673 5687 5693 5720 5723 5766 5771 5775-5776 5781 5784 5792 5795 5817 5821 5836 5838 5848 5870 5872 5878 5891 5918 5939 5986 5990 5999 6015 6018 6021 6025 6044 6062 6065 6067 6088 6091 6096 6101 6104 6110 6124 6132 6164 6167 6204 6211 6219 6255 6268 6292 6306 6348 6368 6374 6385-6386 6404 6406 6427 6436 6448 6458 6496-6498 6501-6502 6504 6507 6515 6548 6559 6568 6582 6601 6619 6636 6638 6641 6647 6723 6754 6764 6774 6777 6815 6822 6831 6864 6888 6910 6923 6937 6948 6957 6963 6976 6984 6988 6996 7004 7012 7028 7035 7037-7038 7045 7091 7094 7114 7130 7149 7176 7181 7207 7212 7220 7233 7235 7245 7262 7265 7269 7285 7296 7308 7310 7315 7336 7343 7346 7354 7380 7389 7411 7421 7426 7446 7448 7456 7475 7478 7507 7518 7530 7548 7553 7569-7570 7623 7640-7641 7653 7655 7660 7681 7699 7709 7715 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38635 38663 38715 38734 38740 38759-38760 38763 38766 38772 38787 38797 38802 38825 38832 38861 38868 38871 38873 38888 38903 38911 38916 38918 38937 38953-38954 38993 39002 39006-39007 39012 39065 39077 39081 39085 39129 39131 39138 39142 39160 39181 39208 39210 39298 39351 39354 39395 39464 39466-39467 39469 39489 39505 39542 39544 39576 39622 39654 39667 39671 39742 39752 39848 39866 39894 39963 39969 39974 39978 40024 40036 40047 40092 40096 40118 40162 40174 40194 40205 40214 40265 40323 40331 40344 40351 40353 40392 40412 40434 40452 40455 40460 40474 40479 40493-40494 40506 40515 40527 40533 40598 40635 40689 40692 40703 40708 40755 40762 40766 40786 40811 40827 40831 40866 40870 40874 40885 40890 40905 40917 40919 40931 40949 40988 40997 41030 41033 41047 41072-41073 41088 41105 41110 41130 41137 41241 41269 41295 41325 41335 41345 41363 41374 41396 41460 41507 41511 41524 41543 41574 41619 41725 41729 41757 41903 41938 41942 41988 42020 42024 42067 42071 42161 42188 42242 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49141-49142https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/268/23?format=asciiGamma-raydefaultJ/ApJS/268/23/table1The magnetic field strength and electron energy for 2708 Fermi blazarsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint4FGL4FGL catalog identifier (JHHMM.m+DDMMc)meta.id;meta.maincharprimaryClass1Spectral classificationsrc.classcharClass2Classification from synchrotron peak frequency (1)src.classcharz[0/4.31]? Redshift from Yang+ 2022, J/ApJS/262/18src.redshiftfloatnullabledelta[0.2/88.5]? Doppler factor (2)spect.dopplerParamfloatnullablelognusy[12/18.7] Log synchrotron peak frequency (3)log(Hz)em.freqfloatlognuIC[19.46/26.4] Log IC peak frequency (3)log(Hz)em.freqfloatP1[-0.3/-0.04]? Spectral curvature (4)stat.fit.paramfloatnullablelogB[-5.41/5.01] Log magnetic field strength; Gauss (5)log(0.0001T)phys.magFieldfloatSimbadSimbad column added by the CDSmeta.ref.urlcharNEDNED column added by the CDSmeta.ref.urlcharlogB2[-1.2/3.8]? Other limit in logB range (5)log(0.0001T)phys.magFieldfloatnullableloggam[0.76/5.5] Log energy of electrons contributing most to synchrotron peak (5)phys.energyfloatloggam2[1/5]? Other limit value in loggam range (5)phys.energyfloatnullablelogUe[-11/19.4] Log energy density of the electrons; erg/cm^3^ (5)log(1e-07J.cm**-3)phys.energy.densityfloatlogUe2[-9.2/10.1]? Other limit value in logUe range (5)log(1e-07J.cm**-3)phys.energy.densityfloatnullableBc[0/29629]? Critical magnetic field strength; Gausslog(0.0001T)phys.magField;phys.atmol.collStrengthdoublenullableLocDisplay the location of the emission region (link to Table 2)meta.ref.urlcharL18Display data from Liodakis+ 2018, J/ApJ/866/137 within 1'meta.ref.urlintnullableF16Display data from Fan+ 2016, J/ApJS/226/20 within 5"meta.ref.urlintnullableDR3iDisplay data from 4FGL-DR3 (IX/67), 4FGL (Abdollahi+ 2020, J/ApJS/247/33)meta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/ApJS/268/23/table2The location of the emission region for 182 blazars4FGL4FGL catalog identifier (JHHMM.+DDMM)meta.id;meta.maincharz[0.03/2.7] Redshiftsrc.redshiftdoubleSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClass1Spectral classification ("BLL", 35 occurrences or "FSRQ", 147 occurrences)src.classchardelta[0.38/88.5]? Doppler factor (1)spect.dopplerParamfloatnullabletheta[0.04/84.2] Viewing angle (1)degpos.posAngfloatlogdem[14.2/20] Estimated log distance (2)log(cm)pos.distancefloatlogdemG15[16/18]? Ghisellini & Tavecchio 2015, J/MNRAS/448/1060 log distance (2)log(cm)pos.distancefloatnullablelogLBLR[42.26/46.4]? Log Broad Line Region luminosity; erg/slog(1e-07W)phys.luminosityfloatnullableG15Display data from Ghisellini+ 2015, J/MNRAS/448/1060 within 5"meta.ref.urlintnullable