One-sided ejection in the prototype tailed radio galaxy 3C 129?

Details One-sided ejection in the prototype tailed radio galaxy 3C 129? One-sided ejection in the prototype tailed radio galaxy 3C 129?

Oct 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...127..235j&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 127, no. 1, Oct. 1983, p. 235-237.

Astronomy and Astrophysics

Astrophysics

8

Astronomical Maps, Galactic Structure, Radio Galaxies, Astronomical Models, Data Reduction, Galactic Clusters, Prototypes, Radiation Distribution, Radio Telescopes

Scientific paper

The radio galaxy 3C 129, the prototype narrow-tailed source has been observed at 0.6 GHz with the 3 km Westerbork telescope. The total intensity distribution map shows a previously unknown feature at the north-eastern side of the head of 3C 129. At the beginning of this extension, the spectral index is about 2. It is proposed that this steep spectrum component is a relic of enhanced activity in the nucleus of 3C 129 about 4×107 yr previously. On this basis, the existence of the new asymmetric feature is taken as a further evidence for the occurrence of periods of "one-sided" ejection in radio sources.

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