Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982azh....59..657k&link_type=abstract
(Astronomicheskii Zhurnal, vol. 59, July-Aug. 1982, p. 657-665) Soviet Astronomy (ISSN 0038-5301), vol. 26, July-Aug. 1982, p. 4
Astronomy and Astrophysics
Astronomy
Astronomical Models, Fine Structure, Radio Galaxies, Relativistic Velocity, Galactic Nuclei, Light Speed, Magnetic Flux, Radiant Flux Density, Very Long Base Interferometry
Scientific paper
The changes observed in the fine structure of the variable radio source 3C 120 are consistent with the model of ultrarelativistic electrons being injected into a magnetic flux tube that expands with distance from the nucleus of the galaxy. This model is invoked to interpret the observed peculiarities in the motion of the radio components: the apparent braking of the resolved components whenever new components develop, the decay of components at the end of their separation tracks, and the frequency-depenent behavior of the components' positions relative to the central source. The component located 0.005-0.007 arcsec from the central source oscillates in position; it probably represents the knot in the large-scale structure of the 3C 120 jet closest to the center.
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