Other
Scientific paper
Jan 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991baas...23r.837w&link_type=abstract
Bulletin of the American Astronomical Society, Vol. 23, p.837
Other
Scientific paper
The milliarcsecond structure of 3C120 was monitored with intercontinental VLBI observations at 6 cm between the late 1970's and 1988. Numerous superluminal components were seen. New ones appeared at about one year intervals. Each component was first seen as a brightening of the core. As it traveled along the jet, it faded in brightness for one to two years until it could no longer be seen with the available image dynamic range. There appear to be episodes of activity during which several components are generated. Between episodes, the core is weak and very compact while the jet is not seen. During an episode, the source usually consists of several bright jet components plus the core. The components are barely resolved from each other, which is consistent with the jet being filled in between them. A situation where a bright component is separated from the rest of the source by a region of low level or no emission was never seen. The preliminary imaging results will be shown in various ways and the implications for the jet physics will be discussed.
Benson James M.
Hunter Todd Russell
Pilbratt Goran
Unwin Stephen C.
Walker Robert Craig
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