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Gaia Data Release 1. Pre-processing and source list creation

hal.structure.identifierNelson Mandela University [Port Elizabeth]
dc.contributor.authorFABRICIUS, C.
hal.structure.identifierZentrum für astronomie
dc.contributor.authorBASTIAN, U.
dc.contributor.authorPORTELL, J.
dc.contributor.authorCASTAÑEDA, J.
hal.structure.identifierOpen University of Israël
dc.contributor.authorDAVIDSON, M.
dc.contributor.authorHAMBLY, N.
dc.contributor.authorCLOTET, M.
hal.structure.identifierDepartment of nuclear medicine
hal.structure.identifierDepartment of Clinical Medicine
dc.contributor.authorBIERMANN, M.
hal.structure.identifierDepartamento de Microbiología y Parasitología [Lugo, Spain]
dc.contributor.authorMORA, A.
dc.contributor.authorBUSONERO, D.
hal.structure.identifierInstitute of Hepatology
dc.contributor.authorRIVA, A.
dc.contributor.authorBROWN, A.
hal.structure.identifierINAF - Osservatorio Astrofisico di Torino [OATo]
dc.contributor.authorSMART, R.
hal.structure.identifierAgence Spatiale Européenne = European Space Agency [ESA]
dc.contributor.authorLAMMERS, U.
dc.contributor.authorTORRA, J.
dc.contributor.authorDRIMMEL, R.
dc.contributor.authorGRACIA, G.
dc.contributor.authorLÖFFLER, W.
dc.contributor.authorSPAGNA, A.
dc.contributor.authorLINDEGREN, L.
dc.contributor.authorKLIONER, S.
hal.structure.identifierARHEOINVEST
dc.contributor.authorANDREI, A.
hal.structure.identifierDepartment of Medicine
dc.contributor.authorBACH, N.
dc.contributor.authorBRAMANTE, L.
dc.contributor.authorBRÜSEMEISTER, T.
dc.contributor.authorBUSSO, G.
hal.structure.identifierCICEnergigune
dc.contributor.authorCARRASCO, J.
hal.structure.identifierAstrometry
dc.contributor.authorGAI, M.
dc.contributor.authorGARRALDA, N.
dc.contributor.authorGONZÁLEZ-VIDAL, J.
hal.structure.identifierLaboratorio de Inmunologıa y Virologıa
dc.contributor.authorGUERRA, R.
hal.structure.identifierLaboratório de Ictiologia e Pesca
dc.contributor.authorHAUSER, M.
hal.structure.identifierDepartment of Pathology and Cell Biology
dc.contributor.authorJORDAN, S.
dc.contributor.authorJORDI, C.
dc.contributor.authorLENHARDT, H.
dc.contributor.authorMIGNARD, F.
dc.contributor.authorMESSINEO, R.
dc.contributor.authorMULONE, A.
dc.contributor.authorSERRALLER, I.
dc.contributor.authorSTAMPA, U.
dc.contributor.authorTANGA, P.
dc.contributor.authorVAN ELTEREN, A.
dc.contributor.authorVAN REEVEN, W.
dc.contributor.authorVOSS, H.
hal.structure.identifierAUTRES
dc.contributor.authorABBAS, U.
hal.structure.identifierEURIX Software Innovators
dc.contributor.authorALLASIA, W.
hal.structure.identifierSystèmes de Référence Temps Espace [SYRTE]
dc.contributor.authorALTMANN, M.
hal.structure.identifierRécepteurs et Canaux Ioniques Membranaires [RCIM]
dc.contributor.authorANTON, S.
hal.structure.identifierSystèmes de Référence Temps Espace [SYRTE]
dc.contributor.authorBARACHE, C.
dc.contributor.authorBECCIANI, U.
hal.structure.identifierInstitut de Mécanique Céleste et de Calcul des Ephémérides [IMCCE]
dc.contributor.authorBERTHIER, J.
dc.contributor.authorBIANCHI, L.
hal.structure.identifierUniversité Grenoble Alpes - UFR Langage, lettres et arts du spectacle, information et communication - Dpt Lettres et arts du spectacle [UGA UFR LLASIC LAS]
dc.contributor.authorBOMBRUN, A.
hal.structure.identifierInstitut de Chimie Moléculaire de Reims - UMR 7312 [ICMR]
hal.structure.identifierSystèmes de Référence Temps Espace [SYRTE]
dc.contributor.authorBOUQUILLON, S.
hal.structure.identifierM2A 2016
dc.contributor.authorBOURDA, G.
dc.contributor.authorBUCCIARELLI, B.
dc.contributor.authorBUTKEVICH, A.
dc.contributor.authorBUZZI, R.
dc.contributor.authorCANCELLIERE, R.
hal.structure.identifierSystèmes de Référence Temps Espace [SYRTE]
dc.contributor.authorCARLUCCI, T.
hal.structure.identifierM2A 2016
dc.contributor.authorCHARLOT, P.
hal.structure.identifierInstitute of Biological, Environmental and Rural Sciences [IBERS]
dc.contributor.authorCOLLINS, R.
dc.contributor.authorCOMORETTO, G.
dc.contributor.authorCROSS, N.
dc.contributor.authorCROSTA, M.
dc.contributor.authorDE FELICE, F.
hal.structure.identifierGéoazur [GEOAZUR 7329]
dc.contributor.authorFIENGA, A.
hal.structure.identifierInstitut de recherches sur la catalyse et l'environnement de Lyon [IRCELYON]
dc.contributor.authorFIGUERAS, F.
dc.contributor.authorFRAILE, E.
dc.contributor.authorGEYER, R.
hal.structure.identifierSolvay (France)
dc.contributor.authorHERNANDEZ, J.
dc.contributor.authorHOBBS, D.
dc.contributor.authorHOFMANN, W.
hal.structure.identifierChinese Academy of Sciences [Beijing] [CAS]
dc.contributor.authorLIAO, S.
dc.contributor.authorLICATA, E.
dc.contributor.authorMARTINO, M.
dc.contributor.authorMCMILLAN, J.
dc.contributor.authorMICHALIK, D.
dc.contributor.authorMORBIDELLI, R.
dc.contributor.authorPARSONS, P.
dc.contributor.authorPECORARO, M.
dc.contributor.authorRAMOS-LERATE, M.
dc.contributor.authorSARASSO, M.
hal.structure.identifierHuman Cancer Genetics Program
dc.contributor.authorSIDDIQUI, H.
hal.structure.identifierAstrophysics Research Institute [Liverpool] [ARI]
dc.contributor.authorSTEELE, I.
dc.contributor.authorSTEIDELMÜLLER, H.
hal.structure.identifierSystèmes de Référence Temps Espace [SYRTE]
dc.contributor.authorTARIS, F.
hal.structure.identifierAstrometry
dc.contributor.authorVECCHIATO, A.
hal.structure.identifierInstituto Superior de Engenharia de Lisboa [ISEL]
hal.structure.identifierCentre of Technology and Systems [CTS]
dc.contributor.authorABREU, A.
hal.structure.identifierDepartamento de Fisica de la Materia Condensada [Madrid] [FMC]
dc.contributor.authorANGLADA, E.
hal.structure.identifierMax-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research [MPS]
dc.contributor.authorBOUDREAULT, S.
dc.contributor.authorCROPPER, M.
hal.structure.identifierHeckscher-Klinikum
dc.contributor.authorHOLL, B.
dc.contributor.authorCHEEK, N.
dc.contributor.authorCROWLEY, C.
dc.contributor.authorFLEITAS, J.
dc.contributor.authorHUTTON, A.
dc.contributor.authorOSINDE, J.
dc.contributor.authorROWELL, N.
dc.contributor.authorSALGUERO, E.
dc.contributor.authorUTRILLA, E.
dc.contributor.authorBLAGORODNOVA, N.
dc.contributor.authorSOFFEL, M.
hal.structure.identifierUniversity of Las Palmas de Gran Canaria [ULPGC]
dc.contributor.authorOSORIO, J.
hal.structure.identifierKarl-Franzens-Universität Graz
dc.contributor.authorVICENTE, D.
dc.contributor.authorCAMBRAS, J.
dc.contributor.authorBERNSTEIN, H.-H.
dc.date.issued2016
dc.identifier.issn0004-6361
dc.description.abstractEnContext. The first data release from the Gaia mission contains accurate positions and magnitudes for more than a billion sources, and proper motions and parallaxes for the majority of the 2.5 million Hipparcos and Tycho-2 stars. Aims: We describe three essential elements of the initial data treatment leading to this catalogue: the image analysis, the construction of a source list, and the near real-time monitoring of the payload health. We also discuss some weak points that set limitations for the attainable precision at the present stage of the mission. Methods: Image parameters for point sources are derived from one-dimensional scans, using a maximum likelihood method, under the assumption of a line spread function constant in time, and a complete modelling of bias and background. These conditions are, however, not completely fulfilled. The Gaia source list is built starting from a large ground-based catalogue, but even so a significant number of new entries have been added, and a large number have been removed. The autonomous onboard star image detection will pick up many spurious images, especially around bright sources, and such unwanted detections must be identified. Another key step of the source list creation consists in arranging the more than 1010 individual detections in spatially isolated groups that can be analysed individually. Results: Complete software systems have been built for the Gaia initial data treatment, that manage approximately 50 million focal plane transits daily, giving transit times and fluxes for 500 million individual CCD images to the astrometric and photometric processing chains. The software also carries out a successful and detailed daily monitoring of Gaia health.
dc.language.isoen
dc.publisherEDP Sciences
dc.typeArticle de revue
dc.identifier.doi10.1051/0004-6361/201628643
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]
dc.identifier.arxiv1609.04273
bordeaux.journalAstronomy and Astrophysics - A&A
bordeaux.pageid.A3
bordeaux.volume595
bordeaux.peerReviewedoui
hal.identifierhal-01409611
hal.version1
hal.popularnon
hal.audienceInternationale
dc.title.itGaia Data Release 1. Pre-processing and source list creation
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01409611v1
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