Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982acaps...2..173z&link_type=abstract
(Acta Astrophysica Sinica, vol. 2, 1982, p. 173-183.) Chinese Astronomy and Astrophysics, vol. 6, Sept. 1982, p. 247-254. Trans
Astronomy and Astrophysics
Astronomy
Astronomical Models, Radio Sources (Astronomy), Regression Analysis, Synchrotron Radiation, Beam Interactions, Data Correlation, Evolution (Development), Intergalactic Media, Luminosity, Relativistic Particles
Scientific paper
A theoretical model for the evolution of the sizes of components of class D II radio sources is presented. The model is based on observed correlation diagrams covering 60 class D II sources, derived from use of the Cambridge 5 km interferometer. Logarithmic regression equations were developed for the entire sample and parts of the sample, and statistical results are given for the relation between omega and Z. A nonexpanding beam model is proposed, suggesting that the central body emits a symmetric pair of energy streams. A conical front shock is produced when the beam interacts with the intergalactic medium. Matter crossing into the interior of the cone is accelerated to relativistic velocities, thereby radiating synchrotron emissions which form the radio source signals.
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