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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/1609
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dc.contributor.authorKrichbaum, T.P.-
dc.contributor.authorWitzel, A.-
dc.contributor.authorDhawan, V.-
dc.date.accessioned2006-12-21T06:59:31Z-
dc.date.available2006-12-21T06:59:31Z-
dc.date.issued1990-10-
dc.identifier.citationAstronomy and Astrophysics, 1990, Vol.237, p3-11en
dc.identifier.issn0004-6361-
dc.identifier.urihttp://hdl.handle.net/2289/1609-
dc.description.abstractA total of 43 GHz images of the bright quasar 3C273 at epochs 1988.48 and 1989.19, obtained from VLBI observations made shortly after a large flux density outburst in the optical/IR band in March 1988 are presented. The later observations reveal a more complex core-jet structure than the earlier ones, indicating superluminal expansion with apparent speed of 5.5 + or - 0.8. The ejecta appear at position angles relative to the core different from those of older components, seen at larger distances, suggesting motion along curved trajectories. These data, combined with those from the literature, suggest a quasi-sinusoidally curved ridgeline of the jet near the core.en
dc.format.extent1724181 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherSpringer-Verlagen
dc.relation.urihttp://adsabs.harvard.edu/cgi-bin/bib_query?1990A&A...237....3Ken
dc.rights(1990) by the European Southern Observatory. Scanned images provided by the NASA ADS.en
dc.subjectFLUX DENSITYen
dc.subjectINFRARED IMAGERYen
dc.subjectQUASARSen
dc.subjectVERY LONG BASE INTERFEROMETRYen
dc.subjectEJECTA,en
dc.subjectSTELLAR CORESen
dc.subjectSTELLAR MOTIONSen
dc.subjectSTELLAR RADIATIONen
dc.title43 GHz-VLBI observations of 3C273 after a flux density outburst in 1988en
dc.typeArticleen
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