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hal.structure.identifierM2A 2013
dc.contributor.authorBOUFFET, Romuald
hal.structure.identifierM2A 2013
dc.contributor.authorCHARLOT, P.
dc.contributor.authorLAMBERT, S.
dc.date.issued2013-08
dc.date.conference2013
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 source structure evolution. In this paper, we compare position instabilities and structural evolution for a sample of 68 sources observed over a 10-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.title.enCorrelation between source structure evolution and VLBI position instabilities
dc.typeCommunication dans un congrès
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]
bordeaux.page185-188
bordeaux.countryFI
bordeaux.conference.cityEspoo
bordeaux.peerReviewedoui
hal.identifierhal-01005229
hal.version1
hal.invitednon
hal.proceedingsoui
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01005229v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2013-08&rft.spage=185-188&rft.epage=185-188&rft.au=BOUFFET,%20Romuald&CHARLOT,%20P.&LAMBERT,%20S.&rft.genre=unknown


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