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Radio source structure from geodetic VLBI observations: evolution of the quasar 3C 345 at 8 GHz
Onsala Space Observatory, Chalmers University of Technology, Gothenburg, Sweden.
Onsala Space Observatory, Chalmers University of Technology, Gothenburg, Sweden.
Onsala Space Observatory, Chalmers University of Technology, Gothenburg, Sweden.ORCID iD: 0000-0002-4826-019X
1989 (English)In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 216, no 1-2, 31-38 p.Article in journal (Refereed) Published
Abstract [en]

Eight VLBI maps of 3C 345 were obtained at 8.3 GHz between 1980 and 1986. During this period, the two jet components C4 and C5 were shown to emerge from the core in succession and to move superluminally toward the west with angular velocities of 0.17 + or - 0.5 and 0.11 + or - 0.02 mas/yr, respectively. An emission detected between D and C5 after 1985.46 suggests that a new component emerged from the core, moving at an angular velocity of 0.2 mas/yr. The C3 component retained a velocity of about 0.44 mas/yr, and its proper motion was found to accelerate in the y-direction and decelerate in the x-direction.

Place, publisher, year, edition, pages
Les Ulis: EDP Sciences, 1989. Vol. 216, no 1-2, 31-38 p.
Keyword [en]
VLBI, mapping, 3C 345
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:hh:diva-22810ISI: A1989AA10000006OAI: oai:DiVA.org:hh-22810DiVA: diva2:629862
Note

This project is supported by the Swedish Research Council for Natural Sciences.

Available from: 2013-06-17 Created: 2013-06-17 Last updated: 2015-08-18Bibliographically approved

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