Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987afz....27..429b&link_type=abstract
Astrofizika (ISSN 0571-7132), vol. 27, Dec. 1987, p. 429-445. In Russian.
Astronomy and Astrophysics
Astronomy
3
Light Curve, Luminosity, Radio Jets (Astronomy), Seyfert Galaxies, Variability, Infrared Sources (Astronomy), Quasars, Radio Sources (Astronomy), Relativistic Velocity
Scientific paper
A relationship between the optical outbursts (ΔB = 0m.7) and separation of compact components of the milliarcsecond radiojet from the nucleus is found for the superluminal source 3C 120. The light curve was used to show that the optical variability of 3C 120 has a multi-component structure similar to that of NGC 4151. 3C 120 has three components with ΔT ≡ 300d; 15 years and ≥70 years. The distances between the components of 200-milliarcsecond radio structure of 3C 120 correspond to the cycle of the 15 years optical component if the proper motion is assumed to be the same as on the milliarcsecond scale. Such accordance may be an argument for the existence of relativistic velocities on large-scale radio structures.
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