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dc.contributor.authorFEY, A. L.
dc.contributor.authorGORDON, D.
hal.structure.identifierAlterra
dc.contributor.authorJACOBS, C. S.
dc.contributor.authorMA, C.
hal.structure.identifierLaboratoire de Chimie Appliquée de l'État Solide [LCAES]
dc.contributor.authorGAUME, R. A.
dc.contributor.authorARIAS, E. F.
dc.contributor.authorBIANCO, G.
dc.contributor.authorBOBOLTZ, D. A.
dc.contributor.authorBÖCKMANN, S.
dc.contributor.authorBOLOTIN, S.
dc.contributor.authorCHARLOT, P.
hal.structure.identifierM2A 2015
dc.contributor.authorCOLLIOUD, A.
dc.contributor.authorENGELHARDT, G.
dc.contributor.authorGIPSON, J.
hal.structure.identifierLaboratoire d'Hydrologie et de Géochimie de Strasbourg [LHyGeS]
hal.structure.identifierSystèmes de Référence Temps Espace [SYRTE]
dc.contributor.authorGONTIER, A.-M.
dc.contributor.authorHEINKELMANN, R.
dc.contributor.authorKURDUBOV, S.
hal.structure.identifierSystèmes de Référence Temps Espace [SYRTE]
dc.contributor.authorLAMBERT, S.
dc.contributor.authorLYTVYN, S.
dc.contributor.authorMACMILLAN, D. S.
hal.structure.identifierPulkovo Observatory
dc.contributor.authorMALKIN, Z.
dc.contributor.authorNOTHNAGEL, A.
dc.contributor.authorOJHA, R.
dc.contributor.authorSKURIKHINA, E.
dc.contributor.authorSOKOLOVA, J.
dc.contributor.authorSOUCHAY, J.
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorSOVERS, O. J.
dc.contributor.authorTESMER, V.
dc.contributor.authorTITOV, O.
hal.structure.identifierResearch School of Chemistry
dc.contributor.authorWANG, Gang
dc.contributor.authorZHAROV, V.
dc.date.issued2015-08
dc.identifier.issn0004-6256
dc.description.abstractEnWe present the second realization of the International Celestial Reference Frame (ICRF2) at radio wavelengths using nearly 30 years of Very Long Baseline Interferometry observations. ICRF2 contains precise positions of 3414 compact radio astronomical objects and has a positional noise floor of ∼40 μas and a directional stability of the frame axes of ∼10 μas. A set of 295 new “defining” sources was selected on the basis of positional stability and the lack of extensive intrinsic source structure. The positional stability of these 295 defining sources and their more uniform sky distribution eliminates the two greatest weaknesses of the first realization of the International Celestial Reference Frame (ICRF1). Alignment of ICRF2 with the International Celestial Reference System was made using 138 positionally stable sources common to both ICRF2 and ICRF1. The resulting ICRF2 was adopted by the International Astronomical Union as the new fundamental celestial reference frame, replacing ICRF1 as of 2010 January 1.
dc.language.isoen
dc.publisherAmerican Astronomical Society
dc.subject.enquasars: general
dc.subject.encatalogs
dc.subject.enastrometry
dc.subject.entechniques: interferometric
dc.subject.enradio continuum: galaxies
dc.subject.enreference systems
dc.title.enTHE SECOND REALIZATION OF THE INTERNATIONAL CELESTIAL REFERENCE FRAME BY VERY LONG BASELINE INTERFEROMETRY
dc.typeArticle de revue
dc.identifier.doi10.1088/0004-6256/150/2/58
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]
bordeaux.journalThe Astronomical Journal
bordeaux.pageid. 58
bordeaux.volume150
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-01197360
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01197360v1
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