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Space-VLBI phase-reference mapping and astrometry

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Space-VLBI phase-reference mapping and astrometry

dc.contributor.author	Guirado Puerta, Jose Carlos
dc.contributor.author	Ros Ibarra, Eduardo
dc.contributor.author	Jones, D.L.
dc.contributor.author	Lestrade, J.-F.
dc.contributor.author	Marcaide Osoro, Juan María
dc.contributor.author	Pérez Torres, Miguel Ángel
dc.contributor.author	Preston, R.A.
dc.date.accessioned	2010-06-18T08:04:07Z
dc.date.available	2010-06-18T08:04:07Z
dc.date.issued	2001
dc.identifier.citation	GUIRADO PUERTA, Jose Carlos ; Ros, E. ; Jones, D.L. ; Lestrade, J.F. ; Marcaide Osoro, Juan María ; Pérez Torres, Miguel Ángel ; Preston, R.A., 2001, Space-VLBI phase-reference mapping and astrometry, Astronomy and Astrophysics, vol. 371, no. 2, p. 766-770	en
dc.identifier.uri	http://hdl.handle.net/10550/12990
dc.description.abstract	We present 5 GHz space-VLBI observations of the quasar pair B1342+662/B 1342+663 that demonstrate the feasibility of phase-reference techniques using an antenna in space. The space-based data were taken by the satellite HALCA, of the space-VLBI mission VSOP. From residual (referenced) phases we derive an upper bound of 10 meters to the uncertainty of the spacecraft orbit reconstruction. An analysis of the phase-reference maps of the sources additionally suggests that the above mentioned uncertainty is likely not larger than 3 meters. With errors of this magnitude, HALCA is a useful tool for astrometric studies of close pairs of radio sources.	en
dc.language.iso	en	en
dc.subject	Astrometry ; Interferometric ; Quasars ; B1342+662 ; B1342+663	en
dc.title	Space-VLBI phase-reference mapping and astrometry	en
dc.type	journal article	es_ES
dc.subject.unesco	UNESCO::ASTRONOMÍA Y ASTROFÍSICA	en
dc.subject.unesco	UNESCO::ASTRONOMÍA Y ASTROFÍSICA::Cosmología y cosmogonia	en
dc.identifier.doi	10.1051/0004-6361:20010370	en
dc.identifier.idgrec	053995	en
dc.type.hasVersion	VoR	es_ES
dc.identifier.url	http://www.aanda.org/index.php?option=article&access=standard&Itemid=129&url=/articles/aa/pdf/2001/20/aa1041.pdf	en