000006061 001__ 6061
000006061 005__ 20240108165803.0
000006061 0247_ $$2DOI$$a10.1051/0004-6361/202243688
000006061 037__ $$aSCART-2023-0022
000006061 100__ $$aCreevey, O. L.
000006061 245__ $$aGaia Data Release 3: Astrophysical parameters inference system (Apsis) I -- methods and content overview
000006061 260__ $$c2023
000006061 520__ $$aGaia Data Release 3 contains a wealth of new data products for the community. Astrophysical parameters are a major component of this release. They were produced by the Astrophysical parameters inference system (Apsis) within the Gaia Data Processing and Analysis Consortium. The aim of this paper is to describe the overall content of the astrophysical parameters in Gaia DR3 and how they were produced. In Apsis we use the mean BP/RP and mean RVS spectra along with astrometry and photometry, and we derive the following parameters: source classification and probabilities for 1.6 billion objects, interstellar medium characterisation and distances for up to 470 million sources, including a 2D total Galactic extinction map, 6 million redshifts of quasar candidates and 1.4 million redshifts of galaxy candidates, along with an analysis of 50 million outlier sources through an unsupervised classification. The astrophysical parameters also include many stellar spectroscopic and evolutionary parameters for up to 470 million sources. These comprise Te, log g, and [M/H] (470 million using BP/RP, 6 million using RVS), radius (470 million), mass (140 million), age (120 million), chemical abundances (up to 5 million), diffuse interstellar band analysis (0.5 million), activity indices (2 million), Halpha equivalent widths (200 million), and further classification of spectral types (220 million) and emission-line stars (50 thousand). This paper is part of a series of three papers: this Paper I focusses on describing the global content of the parameters in Gaia DR3. The accompanying papers II and III focus on the validation and use of the stellar and non-stellar products, respectively. This catalogue is the most extensive homogeneous database of astrophysical parameters to date, and it is based uniquely on Gaia data. It will only be superseded in Gaia Data Release 4. This catalogue will therefore remain a key reference over the next four years, providing astrophysical parameters independent of other ground- and space-based data.
000006061 536__ $$aGaia PRODEX/$$cGaia PRODEX/$$fGaia PRODEX
000006061 594__ $$aNO
000006061 6531_ $$amethods: data analysis
000006061 6531_ $$acatalogs
000006061 6531_ $$astars: fundamental parameters
000006061 6531_ $$aISM: general
000006061 6531_ $$aGalaxy: stellar content
000006061 6531_ $$agalaxies: fundamental parameters
000006061 700__ $$aSordo, R.
000006061 700__ $$aPailler, F.
000006061 700__ $$aFrémat, Y.
000006061 700__ $$aHeiter, U.
000006061 700__ $$aThévenin, F.
000006061 700__ $$aAndrae, R.
000006061 700__ $$aFouesneau, M.
000006061 700__ $$aLobel, A.
000006061 700__ $$aBailer-Jones, C. A. L.
000006061 700__ $$aGarabato, D.
000006061 700__ $$aBellas-Velidis, I.
000006061 700__ $$aBrugaletta, E.
000006061 700__ $$aLorca, A.
000006061 700__ $$aOrdenovic, C.
000006061 700__ $$aPalicio, P. A.
000006061 700__ $$aSarro, L. M.
000006061 700__ $$aDelchambre, L.
000006061 700__ $$aDrimmel, R.
000006061 700__ $$aRybizki, J.
000006061 700__ $$aTorralba Elipe, G.
000006061 700__ $$aKorn, A. J.
000006061 700__ $$aRecio-Blanco, A.
000006061 700__ $$aSchultheis, M. S.
000006061 700__ $$aDe Angeli, F.
000006061 700__ $$aMontegriffo, P.
000006061 700__ $$aAbreu Aramburu, A.
000006061 700__ $$aAccart, S.
000006061 700__ $$aÁlvarez, M. A.
000006061 700__ $$aBakker, J.
000006061 700__ $$aBrouillet, N.
000006061 700__ $$aBurlacu, A.
000006061 700__ $$aCarballo, R.
000006061 700__ $$aCasamiquela, L.
000006061 700__ $$aChiavassa, A.
000006061 700__ $$aContursi, G.
000006061 700__ $$aCooper, W. J.
000006061 700__ $$aDafonte, C.
000006061 700__ $$aDapergolas, A.
000006061 700__ $$ade Laverny, P.
000006061 700__ $$aDharmawardena, T. E.
000006061 700__ $$aEdvardsson, B.
000006061 700__ $$aLe Fustec, Y.
000006061 700__ $$aGarcía-Lario, P.
000006061 700__ $$aGarcía-Torres, M.
000006061 700__ $$aGomez, A.
000006061 700__ $$aGonzález-Santamaría, I.
000006061 700__ $$aHatzidimitriou, D.
000006061 700__ $$aJean-Antoine Piccolo, A.
000006061 700__ $$aKontizas, M.
000006061 700__ $$aKordopatis, G.
000006061 700__ $$aLanzafame, A. C.
000006061 700__ $$aLebreton, Y.
000006061 700__ $$aLicata, E. L.
000006061 700__ $$aLindstrøm, H. E. P.
000006061 700__ $$aLivanou, E.
000006061 700__ $$aMagdaleno Romeo, A.
000006061 700__ $$aManteiga, M.
000006061 700__ $$aMarocco, F.
000006061 700__ $$aMarshall, D. J.
000006061 700__ $$aMary, N.
000006061 700__ $$aNicolas, C.
000006061 700__ $$aPallas-Quintela, L.
000006061 700__ $$aPanem, C.
000006061 700__ $$aPichon, B.
000006061 700__ $$aPoggio, E.
000006061 700__ $$aRiclet, F.
000006061 700__ $$aRobin, C.
000006061 700__ $$aSantoveña, R.
000006061 700__ $$aSilvelo, A.
000006061 700__ $$aSlezak, I.
000006061 700__ $$aSmart, R. L.
000006061 700__ $$aSoubiran, C.
000006061 700__ $$aSüveges, M.
000006061 700__ $$aUlla, A.
000006061 700__ $$aUtrilla, E.
000006061 700__ $$aVallenari, A.
000006061 700__ $$aZhao, H.
000006061 700__ $$aZorec, J.
000006061 700__ $$aBarrado, D.
000006061 700__ $$aBijaoui, A.
000006061 700__ $$aBouret, J. -C.
000006061 700__ $$aBlomme, R.
000006061 700__ $$aBrott, I.
000006061 700__ $$aCassisi, S.
000006061 700__ $$aKochukhov, O.
000006061 700__ $$aMartayan, C.
000006061 700__ $$aShulyak, D.
000006061 700__ $$aSilvester, J.
000006061 773__ $$cA26 (35pp)$$pAstronomy & Astrophysics$$v674$$y2023
000006061 8560_ $$fronny.blomme@observatoire.be
000006061 85642 $$ahttps://ui.adsabs.harvard.edu/abs/2022arXiv220605864C/abstract
000006061 85642 $$ahttps://arxiv.org/abs/2206.05864
000006061 905__ $$apublished in
000006061 980__ $$aREFERD