Implications of fine scale structure in relaxed double radio sources

Details Implications of fine scale structure in relaxed double radio sources Implications of fine scale structure in relaxed double radio sources

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....81..282s&link_type=abstract

Astronomy and Astrophysics, vol. 81, no. 3, Jan. 1980, p. 282-287. Research supported by the Science Research Council, Oxford U

Astronomy and Astrophysics

Astrophysics

6

Astronomical Models, Fine Structure, Radio Galaxies, Spectrum Analysis, Brightness, Galactic Nuclei, Particle Acceleration, Shock Waves, Thermal Instability

Scientific paper

Various possible interpretations of the origin and stability of the low surface brightness knot structures observed in 3C310 and 3C326 are analyzed. It is shown that large scale turbulence, gravitationally bound systems, thermally confined knots, and knot formation through instabilities are not responsible. A plausible model is that several small ram pressure confined knots are ejected from the nucleus or the beam in a relatively non-collimated manner. These supersonically moving knots generate shock waves which can account for the necessary in situ acceleration in the inter-knot medium of the relaxed lobes. More specifically the model can account for the observed spectral characteristics of the individual lobes.

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