Alternating-side ejection in extragalactic radio sources

Details Alternating-side ejection in extragalactic radio sources Alternating-side ejection in extragalactic radio sources

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...279...74r&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 279, April 1, 1984, p. 74-85.

Other

68

Astronomical Maps, Ejecta, Extragalactic Radio Sources, Galactic Structure, Asymmetry, Galactic Nuclei, Particle Acceleration, Quasars, Relativistic Particles

Scientific paper

Analyses of radio galaxy and QSO maps provide evidence for a preferential avoidance of structures at the same nuclear distance on the two sides of a source. It is shown that such an effect is most likely due to ejections from the nucleus occurring on only one side at a time. Under this model, strict constraints are placed on the ejection velocities, the amount of 'cold' material carried along with the relativistic electrons, and the power supply to jets and hot spots. Some theoretical difficulties raised by this model are discussed, referring to current ideas about forming one-sided sources. The lack of a clear signature in other observational tests is demonstrated, and future work is suggested. Throughout the paper, the very limited nature in which extragalactic radio sources are symmetric is emphasized.

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