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The Future of Optical Reference Systems

hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorCHARLOT, P.
dc.date.issued2008
dc.date.conference2008
dc.description.abstractEnOptical reference frames have been traditionally limited in astrometric accuracy compared to radio reference frames which have long reached a sub-milliarcsecond accuracy. The next decade holds promises for big changes in this area with the launch of the Gaia space astrometric mission which unlike Hipparcos will be able to observe several hundred thousands of extragalactic objects with an astrometric accuracy of a few tens of microarcseconds. After reviewing the current status of optical and radio reference frames, this paper draws prospects for building the Gaia optical frame and its alignment with the current International Celestial Reference Frame (ICRF) which is based on radio-interferometric measurements.
dc.language.isoen
dc.source.title2008sf2a.conf....9C - SF2A-2008: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: C. Charbonnel, F. Combes and R. Samadi. Available online at http://proc.sf2a.asso.fr, p.9
dc.title.enThe Future of Optical Reference Systems
dc.typeCommunication dans un congrès
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
bordeaux.page9
bordeaux.countryFR
bordeaux.title.proceeding2008sf2a.conf....9C - SF2A-2008: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: C. Charbonnel, F. Combes and R. Samadi. Available online at http://proc.sf2a.asso.fr, p.9
bordeaux.conference.cityParis
bordeaux.peerReviewedoui
hal.identifierhal-00402935
hal.version1
hal.invitedoui
hal.proceedingsoui
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00402935v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.btitle=2008sf2a.conf....9C%20-%20SF2A-2008:%20Proceedings%20of%20the%20Annual%20meeting%20of%20the%20French%20Society%20of%20Astronomy%20and%20Astrophysics%20Eds.:%20C.%20Charb&rft.date=2008&rft.spage=9&rft.epage=9&rft.au=CHARLOT,%20P.&rft.genre=unknown


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