000006063 001__ 6063
000006063 005__ 20240108165501.0
000006063 0247_ $$2DOI$$a10.1051/0004-6361/202243232
000006063 037__ $$aSCART-2023-0024
000006063 100__ $$aGaia Collaboration
000006063 245__ $$aGaia Data Release 3: The extragalactic content 
000006063 260__ $$c2023
000006063 520__ $$aThe Gaia Galactic survey mission is designed and optimized to obtain astrometry, photometry, and spectroscopy of nearly two billion stars in our Galaxy. Yet as an all-sky multi-epoch survey, Gaia also observes several million extragalactic objects down to a magnitude of G ~ 21 mag. Due to the nature of the Gaia onboard-selection algorithms, these are mostly point-source-like objects. Using data provided by the satellite, we have identified quasar and galaxy candidates via supervised machine learning methods, and estimate their redshifts using the low resolution BP/RP spectra. We further characterise the surface brightness profiles of host galaxies of quasars and of galaxies from pre-defined input lists. Here we give an overview of the processing of extragalactic objects, describe the data products in Gaia DR3, and analyse their properties. Two integrated tables contain the main results for a high completeness, but low purity (50–70%), set of 6.6 million candidate quasars and 4.8 million candidate galaxies.We provide queries that select purer sub-samples of these containing 1.9 million probable quasars and 2.9 million probable galaxies (both ~ 95% purity). We also use high quality BP/RP spectra of 43 thousand high probability quasars over the redshift range 0.05–4.36 to construct a composite quasar spectrum spanning restframe wavelengths from 72–1000 nm.
000006063 536__ $$aGaia PRODEX/$$cGaia PRODEX/$$fGaia PRODEX
000006063 594__ $$aNO
000006063 6531_ $$aAstrophysics
000006063 6531_ $$aAstrophysics of Galaxies
000006063 700__ $$aBailer-Jones, C. A. L.
000006063 700__ $$aTeyssier, D.
000006063 700__ $$aDelchambre, L.
000006063 700__ $$aDucourant, C.
000006063 700__ $$aGarabato, D.
000006063 700__ $$aHatzidimitriou, D.
000006063 700__ $$aKlioner, S. A.
000006063 700__ $$aRimoldini, L.
000006063 700__ $$aBellas-Velidis, I.
000006063 700__ $$aCarballo, R.
000006063 700__ $$aCarnerero, M. I.
000006063 700__ $$aDiener, C.
000006063 700__ $$aFouesneau, M.
000006063 700__ $$aGalluccio, L.
000006063 700__ $$aGavras, P.
000006063 700__ $$aKrone-Martins, A.
000006063 700__ $$aRaiteri, C. M.
000006063 700__ $$aTeixeira, R.
000006063 700__ $$aBrown, A. G. A.
000006063 700__ $$aVallenari, A.
000006063 700__ $$aPrusti, T.
000006063 700__ $$ade Bruijne, J. H. J.
000006063 700__ $$aArenou, F.
000006063 700__ $$aBabusiaux, C.
000006063 700__ $$aBiermann, M.
000006063 700__ $$aCreevey, O. L.
000006063 700__ $$aEvans, D. W.
000006063 700__ $$aEyer, L.
000006063 700__ $$aGuerra, R.
000006063 700__ $$aHutton, A.
000006063 700__ $$aJordi, C.
000006063 700__ $$aLammers, U. L.
000006063 700__ $$aLindegren, L.
000006063 700__ $$aLuri, X.
000006063 700__ $$aMignard, F.
000006063 700__ $$aPanem, C.
000006063 700__ $$aPourbaix, D.
000006063 700__ $$aRandich, S.
000006063 700__ $$aSartoretti, P.
000006063 700__ $$aSoubiran, C.
000006063 700__ $$aTanga, P.
000006063 700__ $$aWalton, N. A.
000006063 700__ $$aBastian, U.
000006063 700__ $$aDrimmel, R.
000006063 700__ $$aJansen, F.
000006063 700__ $$aKatz, D.
000006063 700__ $$aLattanzi, M. G.
000006063 700__ $$avan Leeuwen, F.
000006063 700__ $$aBakker, J.
000006063 700__ $$aCacciari, C.
000006063 700__ $$aCastañeda, J.
000006063 700__ $$aDe Angeli, F.
000006063 700__ $$aFabricius, C.
000006063 700__ $$aFrémat, Y.
000006063 700__ $$aGuerrier, A.
000006063 700__ $$aHeiter, U.
000006063 700__ $$aMasana, E.
000006063 700__ $$aMessineo, R.
000006063 700__ $$aMowlavi, N.
000006063 700__ $$aNicolas, C.
000006063 700__ $$aNienartowicz, K.
000006063 700__ $$aPailler, F.
000006063 700__ $$aPanuzzo, P.
000006063 700__ $$aRiclet, F.
000006063 700__ $$aRoux, W.
000006063 700__ $$aSeabroke, G. M.
000006063 700__ $$aSordo, R.
000006063 700__ $$aThévenin, F.
000006063 700__ $$aGracia-Abril, G.
000006063 700__ $$aPortell, J.
000006063 700__ $$aAltmann, M.
000006063 700__ $$aAndrae, R.
000006063 700__ $$aAudard, M.
000006063 700__ $$aBenson, K.
000006063 700__ $$aBerthier, J.
000006063 700__ $$aBlomme, R.
000006063 700__ $$aBurgess, P. W.
000006063 700__ $$aBusonero, D.
000006063 700__ $$aBusso, G.
000006063 700__ $$aCánovas, H.
000006063 700__ $$aCarry, B.
000006063 700__ $$aCellino, A.
000006063 700__ $$aCheek, N.
000006063 700__ $$aClementini, G.
000006063 700__ $$aDamerdji, Y.
000006063 700__ $$aDavidson, M.
000006063 700__ $$ade Teodoro, P.
000006063 700__ $$aNuñez Campos, M.
000006063 700__ $$aDell'Oro, A.
000006063 700__ $$aEsquej, P.
000006063 700__ $$aFernández-Hernández, J.
000006063 700__ $$aFraile, E.
000006063 700__ $$aGarcía-Lario, P.
000006063 700__ $$aGosset, E.
000006063 700__ $$aHaigron, R.
000006063 700__ $$aHalbwachs, J. -L.
000006063 700__ $$aHambly, N. C.
000006063 700__ $$aHarrison, D. L.
000006063 700__ $$aHernández, J.
000006063 700__ $$aHestroffer, D.
000006063 700__ $$aHodgkin, S. T.
000006063 700__ $$aHoll, B.
000006063 700__ $$aJanßen, K.
000006063 700__ $$aJevardat de Fombelle, G.
000006063 700__ $$aJordan, S.
000006063 700__ $$aLanzafame, A. C.
000006063 700__ $$aLöffler, W.
000006063 700__ $$aMarchal, O.
000006063 700__ $$aMarrese, P. M.
000006063 700__ $$aMoitinho, A.
000006063 700__ $$aMuinonen, K.
000006063 700__ $$aOsborne, P.
000006063 700__ $$aPancino, E.
000006063 700__ $$aPauwels, T.
000006063 700__ $$aRecio-Blanco, A.
000006063 700__ $$aReylé, C.
000006063 700__ $$aRiello, M.
000006063 700__ $$aRoegiers, T.
000006063 700__ $$aRybizki, J.
000006063 700__ $$aSarro, L. M.
000006063 700__ $$aSiopis, C.
000006063 700__ $$aSmith, M.
000006063 700__ $$aSozzetti, A.
000006063 700__ $$aUtrilla, E.
000006063 700__ $$avan Leeuwen, M.
000006063 700__ $$aAbbas, U.
000006063 700__ $$aÁbrahám, P.
000006063 700__ $$aAbreu Aramburu, A.
000006063 700__ $$aAerts, C.
000006063 700__ $$aAguado, J. J.
000006063 700__ $$aAjaj, M.
000006063 700__ $$aAldea-Montero, F.
000006063 700__ $$aAltavilla, G.
000006063 700__ $$aÁlvarez, M. A.
000006063 700__ $$aAlves, J.
000006063 700__ $$aAnderson, R. I.
000006063 700__ $$aAnglada Varela, E.
000006063 700__ $$aAntoja, T.
000006063 700__ $$aBaines, D.
000006063 700__ $$aBaker, S. G.
000006063 700__ $$aBalaguer-Núñez, L.
000006063 700__ $$aBalbinot, E.
000006063 700__ $$aBalog, Z.
000006063 700__ $$aBarache, C.
000006063 700__ $$aBarbato, D.
000006063 700__ $$aBarros, M.
000006063 700__ $$aBarstow, M. A.
000006063 700__ $$aBartolomé, S.
000006063 700__ $$aBassilana, J. -L.
000006063 700__ $$aBauchet, N.
000006063 700__ $$aBecciani, U.
000006063 700__ $$aBellazzini, M.
000006063 700__ $$aBerihuete, A.
000006063 700__ $$aBernet, M.
000006063 700__ $$aBertone, S.
000006063 700__ $$aBianchi, L.
000006063 700__ $$aBinnenfeld, A.
000006063 700__ $$aBlanco-Cuaresma, S.
000006063 700__ $$aBoch, T.
000006063 700__ $$aBombrun, A.
000006063 700__ $$aBossini, D.
000006063 700__ $$aBouquillon, S.
000006063 700__ $$aBragaglia, A.
000006063 700__ $$aBramante, L.
000006063 700__ $$aBreedt, E.
000006063 700__ $$aBressan, A.
000006063 700__ $$aBrouillet, N.
000006063 700__ $$aBrugaletta, E.
000006063 700__ $$aBucciarelli, B.
000006063 700__ $$aBurlacu, A.
000006063 700__ $$aButkevich, A. G.
000006063 700__ $$aBuzzi, R.
000006063 700__ $$aCaffau, E.
000006063 700__ $$aCancelliere, R.
000006063 700__ $$aCantat-Gaudin, T.
000006063 700__ $$aCarlucci, T.
000006063 700__ $$aCarrasco, J. M.
000006063 700__ $$aCasamiquela, L.
000006063 700__ $$aCastellani, M.
000006063 700__ $$aCastro-Ginard, A.
000006063 700__ $$aChaoul, L.
000006063 700__ $$aCharlot, P.
000006063 700__ $$aChemin, L.
000006063 700__ $$aChiaramida, V.
000006063 700__ $$aChiavassa, A.
000006063 700__ $$aChornay, N.
000006063 700__ $$aComoretto, G.
000006063 700__ $$aContursi, G.
000006063 700__ $$aCooper, W. J.
000006063 700__ $$aCornez, T.
000006063 700__ $$aCowell, S.
000006063 700__ $$aCrifo, F.
000006063 700__ $$aCropper, M.
000006063 700__ $$aCrosta, M.
000006063 700__ $$aCrowley, C.
000006063 700__ $$aDafonte, C.
000006063 700__ $$aDapergolas, A.
000006063 700__ $$aDavid, P.
000006063 700__ $$ade Laverny, P.
000006063 700__ $$aDe Luise, F.
000006063 700__ $$aDe March, R.
000006063 700__ $$aDe Ridder, J.
000006063 700__ $$ade Souza, R.
000006063 700__ $$ade Torres, A.
000006063 700__ $$adel Peloso, E. F.
000006063 700__ $$adel Pozo, E.
000006063 700__ $$aDelbo, M.
000006063 700__ $$aDelgado, A.
000006063 700__ $$aDelisle, J. -B.
000006063 700__ $$aDemouchy, C.
000006063 700__ $$aDharmawardena, T. E.
000006063 700__ $$aDiakite, S.
000006063 700__ $$aDistefano, E.
000006063 700__ $$aDolding, C.
000006063 700__ $$aEnke, H.
000006063 700__ $$aFabre, C.
000006063 700__ $$aFabrizio, M.
000006063 700__ $$aFaigler, S.
000006063 700__ $$aFedorets, G.
000006063 700__ $$aFernique, P.
000006063 700__ $$aFigueras, F.
000006063 700__ $$aFournier, Y.
000006063 700__ $$aFouron, C.
000006063 700__ $$aFragkoudi, F.
000006063 700__ $$aGai, M.
000006063 700__ $$aGarcia-Gutierrez, A.
000006063 700__ $$aGarcia-Reinaldos, M.
000006063 700__ $$aGarcía-Torres, M.
000006063 700__ $$aGarofalo, A.
000006063 700__ $$aGavel, A.
000006063 700__ $$aGerlach, E.
000006063 700__ $$aGeyer, R.
000006063 700__ $$aGiacobbe, P.
000006063 700__ $$aGilmore, G.
000006063 700__ $$aGirona, S.
000006063 700__ $$aGiuffrida, G.
000006063 700__ $$aGomel, R.
000006063 700__ $$aGomez, A.
000006063 700__ $$aGonzález-Núñez, J.
000006063 700__ $$aGonzález-Santamaría, I.
000006063 700__ $$aGonzález-Vidal, J. J.
000006063 700__ $$aGranvik, M.
000006063 700__ $$aGuillout, P.
000006063 700__ $$aGuiraud, J.
000006063 700__ $$aGutiérrez-Sánchez, R.
000006063 700__ $$aGuy, L. P.
000006063 700__ $$aHauser, M.
000006063 700__ $$aHaywood, M.
000006063 700__ $$aHelmer, A.
000006063 700__ $$aHelmi, A.
000006063 700__ $$aSarmiento, M. H.
000006063 700__ $$aHidalgo, S. L.
000006063 700__ $$aHładczuk, N.
000006063 700__ $$aHobbs, D.
000006063 700__ $$aHolland, G.
000006063 700__ $$aHuckle, H. E.
000006063 700__ $$aJardine, K.
000006063 700__ $$aJasniewicz, G.
000006063 700__ $$aJean-Antoine Piccolo, A.
000006063 700__ $$aJiménez-Arranz, Ó.
000006063 700__ $$aJuaristi Campillo, J.
000006063 700__ $$aJulbe, F.
000006063 700__ $$aKarbevska, L.
000006063 700__ $$aKervella, P.
000006063 700__ $$aKhanna, S.
000006063 700__ $$aKontizas, M.
000006063 700__ $$aKordopatis, G.
000006063 700__ $$aKorn, A. J.
000006063 700__ $$aKóspál, Á
000006063 700__ $$aKostrzewa-Rutkowska, Z.
000006063 700__ $$aKruszyńska, K.
000006063 700__ $$aKun, M.
000006063 700__ $$aLaizeau, P.
000006063 700__ $$aLambert, S.
000006063 700__ $$aLanza, A. F.
000006063 700__ $$aLasne, Y.
000006063 700__ $$aLe Campion, J. -F.
000006063 700__ $$aLebreton, Y.
000006063 700__ $$aLebzelter, T.
000006063 700__ $$aLeccia, S.
000006063 700__ $$aLeclerc, N.
000006063 700__ $$aLecoeur-Taibi, I.
000006063 700__ $$aLiao, S.
000006063 700__ $$aLicata, E. L.
000006063 700__ $$aLindstrøm, H. E. P.
000006063 700__ $$aLister, T. A.
000006063 700__ $$aLivanou, E.
000006063 700__ $$aLobel, A.
000006063 700__ $$aLorca, A.
000006063 700__ $$aLoup, C.
000006063 700__ $$aMadrero Pardo, P.
000006063 700__ $$aMagdaleno Romeo, A.
000006063 700__ $$aManagau, S.
000006063 700__ $$aMann, R. G.
000006063 700__ $$aManteiga, M.
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000006063 700__ $$aMarcos, J.
000006063 700__ $$aMarcos Santos, M. M. S.
000006063 700__ $$aMarín Pina, D.
000006063 700__ $$aMarinoni, S.
000006063 700__ $$aMarocco, F.
000006063 700__ $$aMarshall, D. J.
000006063 700__ $$aPolo, L. Martin
000006063 700__ $$aMartín-Fleitas, J. M.
000006063 700__ $$aMarton, G.
000006063 700__ $$aMary, N.
000006063 700__ $$aMasip, A.
000006063 700__ $$aMassari, D.
000006063 700__ $$aMastrobuono-Battisti, A.
000006063 700__ $$aMazeh, T.
000006063 700__ $$aMcMillan, P. J.
000006063 700__ $$aMessina, S.
000006063 700__ $$aMichalik, D.
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000006063 700__ $$aMints, A.
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000006063 700__ $$aMontegriffo, P.
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000006063 700__ $$aMor, R.
000006063 700__ $$aMora, A.
000006063 700__ $$aMorbidelli, R.
000006063 700__ $$aMorel, T.
000006063 700__ $$aMorris, D.
000006063 700__ $$aMuraveva, T.
000006063 700__ $$aMurphy, C. P.
000006063 700__ $$aMusella, I.
000006063 700__ $$aNagy, Z.
000006063 700__ $$aNoval, L.
000006063 700__ $$aOcaña, F.
000006063 700__ $$aOgden, A.
000006063 700__ $$aOrdenovic, C.
000006063 700__ $$aOsinde, J. O.
000006063 700__ $$aPagani, C.
000006063 700__ $$aPagano, I.
000006063 700__ $$aPalaversa, L.
000006063 700__ $$aPalicio, P. A.
000006063 700__ $$aPallas-Quintela, L.
000006063 700__ $$aPanahi, A.
000006063 700__ $$aPayne-Wardenaar, S.
000006063 700__ $$aPeñalosa Esteller, X.
000006063 700__ $$aPenttilä, A.
000006063 700__ $$aPichon, B.
000006063 700__ $$aPiersimoni, A. M.
000006063 700__ $$aPineau, F. -X.
000006063 700__ $$aPlachy, E.
000006063 700__ $$aPlum, G.
000006063 700__ $$aPoggio, E.
000006063 700__ $$aPrša, A.
000006063 700__ $$aPulone, L.
000006063 700__ $$aRacero, E.
000006063 700__ $$aRagaini, S.
000006063 700__ $$aRainer, M.
000006063 700__ $$aRamos, P.
000006063 700__ $$aRamos-Lerate, M.
000006063 700__ $$aRe Fiorentin, P.
000006063 700__ $$aRegibo, S.
000006063 700__ $$aRichards, P. J.
000006063 700__ $$aRios Diaz, C.
000006063 700__ $$aRipepi, V.
000006063 700__ $$aRiva, A.
000006063 700__ $$aRix, H. -W.
000006063 700__ $$aRixon, G.
000006063 700__ $$aRobichon, N.
000006063 700__ $$aRobin, A. C.
000006063 700__ $$aRobin, C.
000006063 700__ $$aRoelens, M.
000006063 700__ $$aRogues, H. R. O.
000006063 700__ $$aRohrbasser, L.
000006063 700__ $$aRomero-Gómez, M.
000006063 700__ $$aRowell, N.
000006063 700__ $$aRoyer, F.
000006063 700__ $$aRuz Mieres, D.
000006063 700__ $$aRybicki, K. A.
000006063 700__ $$aSadowski, G.
000006063 700__ $$aSáez Núñez, A.
000006063 700__ $$aSagristà Sellés, A.
000006063 700__ $$aSahlmann, J.
000006063 700__ $$aSalguero, E.
000006063 700__ $$aSamaras, N.
000006063 700__ $$aSanchez Gimenez, V.
000006063 700__ $$aSanna, N.
000006063 700__ $$aSantoveña, R.
000006063 700__ $$aSarasso, M.
000006063 700__ $$aSchultheis, M. S.
000006063 700__ $$aSciacca, E.
000006063 700__ $$aSegol, M.
000006063 700__ $$aSegovia, J. C.
000006063 700__ $$aSégransan, D.
000006063 700__ $$aSemeux, D.
000006063 700__ $$aShahaf, S.
000006063 700__ $$aSiddiqui, H. I.
000006063 700__ $$aSiebert, A.
000006063 700__ $$aSiltala, L.
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000006063 700__ $$aSlezak, I.
000006063 700__ $$aSmart, R. L.
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000006063 700__ $$aSolano, E.
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000006063 700__ $$aSouchay, J.
000006063 700__ $$aSpagna, A.
000006063 700__ $$aSpina, L.
000006063 700__ $$aSpoto, F.
000006063 700__ $$aSteele, I. A.
000006063 700__ $$aSteidelmüller, H.
000006063 700__ $$aStephenson, C. A.
000006063 700__ $$aSüveges, M.
000006063 700__ $$aSurdej, J.
000006063 700__ $$aSzabados, L.
000006063 700__ $$aSzegedi-Elek, E.
000006063 700__ $$aTaris, F.
000006063 700__ $$aTaylor, M. B.
000006063 700__ $$aTolomei, L.
000006063 700__ $$aTonello, N.
000006063 700__ $$aTorra, F.
000006063 700__ $$aTorra, J.
000006063 700__ $$aTorralba Elipe, G.
000006063 700__ $$aTrabucchi, M.
000006063 700__ $$aTsounis, A. T.
000006063 700__ $$aTuron, C.
000006063 700__ $$aUlla, A.
000006063 700__ $$aUnger, N.
000006063 700__ $$aVaillant, M. V.
000006063 700__ $$avan Dillen, E.
000006063 700__ $$avan Reeven, W.
000006063 700__ $$aVanel, O.
000006063 700__ $$aVecchiato, A.
000006063 700__ $$aViala, Y.
000006063 700__ $$aVicente, D.
000006063 700__ $$aVoutsinas, S.
000006063 700__ $$aWeiler, M.
000006063 700__ $$aWevers, T.
000006063 700__ $$aWyrzykowski, Ł.
000006063 700__ $$aYoldas, A.
000006063 700__ $$aYvard, P.
000006063 700__ $$aZhao, H.
000006063 700__ $$aZorec, J.
000006063 700__ $$aZucker, S.
000006063 700__ $$aZwitter, T.
000006063 773__ $$cA41 (33p)$$pAstronomy & Astrophysics$$v674$$y2023
000006063 8560_ $$fronny.blomme@observatoire.be
000006063 85642 $$ahttps://ui.adsabs.harvard.edu/abs/2022arXiv220605681G/abstract
000006063 85642 $$ahttps://arxiv.org/abs/2206.05681
000006063 905__ $$apublished in
000006063 980__ $$aREFERD