The 4LAC-DR3 catalog J/ApJS/263/24 ivo://CDS.VizieR/J/ApJS/263/24 doi:10.26093/cds/vizier.22630024 CDS Ajello M. Baldini L. Ballet J. Bastieri D. Becerra Gonzalez J.,Bellazzini R. Berretta A. Bissaldi E. Bonino R. Brill A. Bruel P.,Buson S. Caputo R. Caraveo P.A. Cheung C.C. Chiaro G. Cibrario N.,Ciprini S. Crnogorcevic M. Cutini S. D'ammando F. De Gaetano S.,Di Lalla N. Di Venere L. Dominguez A. Ramazani V.F. Ferrara E.C.,Fiori A. Fukazawa Y. Funk S. Fusco P. Gammaldi V. Gargano F.,Garrappa S. Gasparrini D. Giglietto N. Giordano F. Giroletti M.,Green D. Grenier I.A. Guiriec S. Horan D. Hou X. Kayanoki T. Kuss M.,Larsson S. Latronico L. Lewis T. Li J. Liodakis I. Longo F.,Loparco F. Lott B. Lovellette M.N. Lubrano P. Madejski G.M.,Maldera S. Manfreda A. Marti-devesa G. Mazziotta M.N. Mereu I.,Michelson P.F. Mirabal N. Mitthumsiri W. Mizuno T. Monzani M.E.,Morselli A. Moskalenko I.V. Negro M. Ojha R. Orienti M. Orlando E.,Ormes J.F. Pei Z. Pena-herazo H. Persic M. Pesce-rollins M.,Petrosian V. Pillera R. Poon H. Porter T.A. Principe G. Raino S.,Rando R. Rani B. Razzano M. Razzaque S. Reimer A. Reimer O.,Scotton L. Serini D. Sgro C. Siskind E.J. Spandre G. Spinelli P.,Suson D.J. Tajima H. Torres D.F. Valverde J. Yassin H. Zaharijas G. 2024-12-03T20:12:27Z 2023-04-11T17:27:12Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr active-galactic-nuclei gamma-ray-astronomy surveys radio-galaxies bl-lacertae-objects quasars An incremental version of the fourth catalog of active galactic nuclei (AGNs) detected by the Fermi Large Area Telescope is presented. This version (4LAC-DR3) derives from the third data release of the 4FGL catalog based on 12yr of E>50MeV gamma-ray data, where the spectral parameters, spectral energy distributions (SEDs), yearly light curves, and associations have been updated for all sources. The new reported AGNs include 587 blazar candidates and four radio galaxies. We describe the properties of the new sample and outline changes affecting the previously published one. We also introduce two new parameters in this release, namely the peak energy of the SED high-energy component and the corresponding flux. These parameters allow an assessment of the Compton dominance, the ratio of the inverse-Compton to the synchrotron-peak luminosities, without relying on X-ray data. 2022ApJS..263...24A https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/263/24 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to IX/67 : Incremental Fermi LAT 4th source cat. (4FGL-DR3) (Fermi-LAT col., 2022) J/A+A/484/119 : Multi-epoch VLBI survey of CJF sources (Britzen+, 2008) J/ApJ/716/30 : SED of Fermi bright blazars (Abdo+, 2010) J/ApJS/188/405 : Fermi-LAT first source catalog (1FGL) (Abdo+, 2010) J/ApJ/740/98 : Synchroton peak for blazars and radio galaxies (Meyer+, 2011) J/ApJ/743/171 : The 2LAC catalog (Ackermann+, 2011) J/A+A/544/A18 : Radio galaxies of the local universe (van Velzen+, 2012) J/ApJ/810/14 : Third catalog of LAT-detected AGNs (3LAC) (Ackermann+, 2015) J/ApJS/247/33 : The Fermi LAT fourth source catalog (4FGL) (Abdollahi+, 2020) J/ApJ/892/105 : 4th catalog of Fermi LAT-detected AGNs (4LAC) (Ajello+, 2020) J/A+A/643/A103 : Fermi-LAT low-energy counterparts (Pena-Herazo+, 2020) J/AJ/161/196 : Opt. overview of blazars with LAMOST. I. (Pena-herazo+, 2021) J/ApJS/253/46 : Optical spectroscopy of Fermi blazars (Paliya+, 2021) J/ApJS/254/26 : Identifying 3FHL. V. CTIO-COSMOS spectra (Rajagopal+, 2021) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/263/24 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/263/24 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/263/24 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/263/24 https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/263/24 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/263/24 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/ApJS/263/24/4lacdr3 (Combined table from original tables) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/263/24/4lacdr3? https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/263/24/4lacdr3? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/263/24/4lacdr3? 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38369 38389 38409 38455 38470 38481 38486 38495 38516 38579 38585 38635 38663 38715 38734 38740 38759-38760 38762-38763 38766 38772 38787 38797 38802 38825 38832 38837 38842 38861 38868 38871 38873 38888 38903 38911 38916 38918 38937 38942 38953-38954 38992 39002 39006-39007 39012 39028 39037 39065 39077 39081 39085 39092 39129 39131-39132 39138 39142 39146 39160 39181 39190 39208 39210 39298 39351 39353-39354 39376 39395 39464 39466-39467 39469 39489 39505 39517 39520 39529 39542 39544 39570 39599-39600 39619 39654 39658 39667 39671 39677 39717 39724 39742 39752 39781 39786 39851 39866 39894 39946 39963 39969 39974 39978 39998 40024 40036 40047 40092 40096 40118 40162 40174 40194 40205 40211 40214 40235 40254 40265 40323 40329 40331-40332 40337 40344 40351 40353 40391-40392 40412 40422 40434 40452 40455 40460 40470 40474 40479 40493-40494 40506 40515 40524 40527 40533 40598 40635-40636 40689 40692 40698 40703 40708 40755 40762 40766 40786 40811 40827 40831 40842 40859 40866 40870 40874 40879 40885 40890 40905 40917 40919 40931 40949 40988 40997 41009 41030 41033 41047 41051 41058 41067 41072-41073 41088 41105 41110 41114 41130 41137 41155 41179 41187 41222 41230 41241 41269 41295 41310 41325 41335 41345 41350 41359 41363 41374 41396 41426 41460 41464 41495 41507 41510-41511 41524 41533 41543 41574 41578 41586 41607 41619 41653 41701 41725 41729 41757 41782 41824 41903 41920 41938 41942 41966 41970 41982 41988 42008 42012 42020 42024 42046 42048 42054 42067 42071 42102 42105 42107 42161 42188 42228 42242 42256 42261 42286 42329 42360 42411 42432 42440 42471 42481 42493-42494 42515 42540 42571 42580 42584 42601 42609 42637 42658 42664 42675 42721 42779 42788 42803 42809 42816 42822 42834 42855 42882 42901 42904 42914 42920 42979-42980 43038 43043 43066 43085 43105 43112 43116 43122 43186 43198 43225 43246 43262 43283 43294 43337 43354 43366 43377 43380 43382 43399 43412 43421-43422 43439 43443 43447 43451 43483 43490 43503 43556 43572 43578 43595-43597 43603 43630 43643 43649 43662 43696 43707 43710 43746 43793 43802 43805 43822 43877 43883 43888 43891 43914 43978 43986 43996 44011 44042-44043 44046 44049-44050 44052 44059 44069 44106 44113 44121 44123 44131 44140 44147 44153 44170 44172-44173 44179 44192-44193 44213 44223 44247 44255 44260 44288 44290-44291 44308 44313 44336 44340 44365 44379 44389 44412 44420 44449 44477 44484 44493 44508 44519 44526 44533 44539 44543 44554 44582 44586 44592 44609 44614 44624 44633 44638 44653-44654 44658 44661 44669 44702 44704 44713 44724 44730 44734 44746 44791 44799 44805 44813 44820 44840 44845 44901-44902 44908 44911 44913 44952 44956 44961 44971 45011 45016 45038 45068 45081 45122 45146 45162 45164 45176 45178 45196 45214 45216 45242 45246 45262 45267 45284 45289 45293 45295 45307 45315-45316 45330 45352 45358 45360 45371 45386 45406 45415 45446 45454 45478 45482 45490-45491 45543 45564 45612 45622 45632 45640 45681 45713 45725 45746 45773-45774 45812 45816 45820 45822 45836 45843 45897 45907 45914 45926 45943 45957 45972 45977 46020 46030 46033 46035 46041 46055 46090 46102 46109 46122 46142 46152 46157 46200 46204 46220 46251 46258 46280 46285 46310 46320 46331 46337 46352 46354 46356 46358 46369-46370 46373-46374 46394 46404 46419 46439 46442 46444-46445 46448 46458 46468 46500-46501 46508 46511 46526 46545 46547 46564 46568-46569 46608 46613 46617 46665 46677 46723 46728 46740 46744 46761 46764 46772 46787 46798 46835 46843 46852 46872 46886 46911 46921 46924 46963-46966 47014 47016 47021 47046 47057 47062 47065 47070 47080 47101 47106 47112 47130 47132 47151-47152 47154 47205 47231 47248-47249 47277 47288 47304 47319 47327 47346 47375 47382 47398 47413 47419 47425 47442 47461 47463 47466 47479 47497 47506 47529 47533-47534 47540 47561 47564 47566 47605 47621 47630 47636 47649 47675 47708 47714 47720 47771 47805 47847 47865 47900 47912 47928 47943 47960-47961 47969 47994 48023 48090 48100 48106 48121 48123 48128 48154 48187 48201 48204 48245 48259 48274 48300 48315 48320 48345 48352 48358 48362 48366 48381 48388 48398 48407 48419 48440 48443 48504 48528 48576 48580 48589 48595 48603 48624 48629 48670-48671 48685 48689 48738 48749 48758 48763 48778 48797-48798 48829 48841 48846 48854 48858 48870 48878 48885 48916 48933 48957 48962 48974 48985 48995 49017 49037 49043 49068 49071 49083 49087 49097 49124 49141-49142 49145 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/263/24?format=ascii Gamma-ray Radio default J/ApJS/263/24/4lacdr3 Combined table from original tables Group meta.id char Flags [0/6144] Analysis flags (Flags) meta.code.error int GLON Galactic longitude deg pos.galactic.lon nuFnuPk [7e-8/0.0002]? {nu}F{nu} at high-energy-peak frequency in MeV/cm^2^/s (HE_nuFnuPeak) MeV.cm**-2.s**-1 phot.flux.density;em.gamma.hard double nullable Simbad Simbad column added by the CDS meta.ref.url char Assoc1 Name of identified or likely associated source meta.id.assoc char recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int DR [1/3] Data release (DataRelease) (2) meta.code int RAJ2000 Right ascension in decimal degrees (J2000) deg pos.eq.ra;meta.main DEJ2000 Declination in decimal degrees (J2000) deg pos.eq.dec;meta.main GLAT Galactic latitude deg pos.galactic.lat double Sig [2.6/455] Source significance in {sigma} units over the 50MeV to 1TeV band (Signif_Avg) stat.fit.goodness;arith.ratio double F1000i [8.9e-12/7.5e-8] Integral photon flux from 1 to 100GeV (Flux1000) ph.cm**-2.s**-1 phot.flux.density;em.gamma.hard double e_F1000i [7.5e-12/4.5e-10] F1000i 1{sigma} error (Unc_Flux1000) ph.cm**-2.s**-1 stat.error double EF100 [3.7e-13/8.5e-10] Energy flux from 100MeV to 100GeV obtained by spectral fitting in erg/cm^2^/s (Energy_Flux100) mW.m**-2 phot.flux.density;em.gamma.hard double e_EF100 [1e-13/6.8e-12] EF100 1{sigma} error (Unc_Energy_Flux100) mW.m**-2 stat.error double PLGam [1.4/3.2] Photon index when fitting with PowerLaw (PL_Index) spect.index float e_PLGam [0.003/0.3] PLGam 1{sigma} error (Unc_PL_Index) stat.error float Epiv [241/34572] Pivot energy (Pivot_Energy) MeV phys.energy double LPalpha [-0.05/3.3] Photon index at Pivot_Energy ({alpha}) when fitting with LogParabola (LP_Index) spect.index float e_LPalpha [0.004/3] LPalpha 1{sigma} error (Unc_LP_Index) stat.error float LPbeta [-0.12/1] Curvature parameter ({beta}) when fitting with LogParabola (LP_beta) stat.fit.param float e_LPbeta [0.002/1.8]? LPbeta 1{sigma} error (Unc_LP_beta) stat.error float nullable ProbBY [0/1]? Probability of association according to the Bayesian method (ASSOC_PROB_BAY) stat.fit.goodness float nullable ProbLR [0/1] Probability of association according to the likelihood-ratio method (ASSOC_PROB_LR) stat.fit.goodness float RACdeg Right ascension of the counterpart Assoc1 (J2000) (RA_Counterpart) deg pos.eq.ra DECdeg Declination of the counterpart Assoc1 (J2000) (DEC_Counterpart) deg pos.eq.dec errCPos [3.8e-8/2.5] 95% precision of the counterpart localization (Unc_Counterpart) deg meta.code.qual;instr.precision double z [1.7e-5/4.4]? Redshift (Redshift) src.redshift double nullable 4FGL 4FGL name (JHHMM.m+DDMMa) (Source_Name) (1) meta.id;meta.main char EpkHE [0.04/1.2e+8]? Energy in the observer frame of the high-energy SED peak (HE_EPeak) MeV phys.energy;stat.max double nullable e_EpkHE [0.5/5.5e+9]? EpkHE 1{sigma} error (Unc_HE_EPeak) MeV stat.error double nullable e_nuFnuPk [2.4e-8/0.00011]? nuFnuPk 1{sigma} error (Unc_HE_nuFnuPeak) MeV.cm**-2.s**-1 stat.error double nullable nu [0/1.8e+20] Synchrotron-peak frequency in the observer frame (nu_syn) Hz em.freq;obs.field double nuFnu [0/8e-10] {nu}F{nu} at synchrotron-peak frequency in erg/cm^2^/s (nuFnu_syn) mW.m**-2 phot.flux.density;em.gamma.hard double Var [1.6/84341] Variability index (Variability_Index) src.var.index double fVar [0/3] Fractional variability (Frac_Variability) src.var.index float e_fVar [0.01/10] fVar 1{sigma} error (Unc_Frac_Variability) stat.error float Emax [10/913]? Energy (if greater than 10GeV) of the highest-energy ULTRACLEANVETO photon with association probability P>0.95 (Highest_energy) GeV phys.energy;stat.max;em.gamma double nullable Mod Spectral type in the global model; PowerLaw, LogParabola or PLSuperExpCutoff (SpectrumType) src.spType;meta.modelled char Class Class designation for associated source src.class char CCat Counterpart catalog driving the association (Counterpart_Catalog) (3) meta.id;meta.dataset char RFC Name of the very long baseline interferometry counterpart (VLBI_Counterpart) meta.id.cross char SEDCl SED-based class (SED_class) src.spType char