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Effects of AGN jet evolution on VLBI astrometric positions

hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
dc.contributor.authorBOUFFET, R.
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
dc.contributor.authorCHARLOT, Patrick
hal.structure.identifierSystèmes de Référence Temps Espace [SYRTE]
hal.structure.identifierSystèmes de référence célestes
dc.contributor.authorLAMBERT, Sébastien
dc.contributor.editorD. Behrend et al (Eds)
dc.date.issued2014
dc.date.conference2014
dc.description.abstractEnAstrometric positions of extragalactic radio sources derived from VLBI data are used to build highly-accurate reference frames such as the International Celestial Reference Frame. Despite their distant locations, instabilities in the position of these sources are often seen on time scales of months to years, which is generally thought to be caused by their source structure evolution. In this paper, we compare position instabilities and structural evolution for a sample of 68 sorces observed over a ten-year period (1994-2003). Our results indicate that the two phenomena are linked at some level although the correlation is not perfect.
dc.language.isoen
dc.source.titleIVS 2014 General Meeting Proceedings
dc.title.enEffects of AGN jet evolution on VLBI astrometric positions
dc.typeCommunication dans un congrès
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]
bordeaux.page417
bordeaux.conference.titleInternational VLBI Service for Geodesy and Astrometry (IVS) 2014 General Meeting Proceedings
bordeaux.countryCN
bordeaux.title.proceedingIVS 2014 General Meeting Proceedings
bordeaux.conference.cityBeijing
bordeaux.peerReviewednon
hal.identifierhal-03743268
hal.version1
hal.proceedingsoui
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03743268v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.btitle=IVS%202014%20General%20Meeting%20Proceedings&rft.date=2014&rft.spage=417&rft.epage=417&rft.au=BOUFFET,%20R.&CHARLOT,%20Patrick&LAMBERT,%20S%C3%A9bastien&rft.genre=unknown


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