High resolution radio observations of NGC 4874

Details High resolution radio observations of NGC 4874 High resolution radio observations of NGC 4874

Aug 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...182...15f&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 182, no. 1, Aug. 1987, p. 15-20.

Astronomy and Astrophysics

Astronomy

17

Galactic Structure, Radio Astronomy, Radio Galaxies, Radio Jets (Astronomy), Astronomical Models, Galactic Clusters, Intergalactic Media, Very Large Array (Vla)

Scientific paper

High-resolution radio observations, obtained with the VLA at 20 and 6 cm, are presented for the radio source associated with NGC 4874. This is one of the two dominant galaxies of the Coma cluster of galaxies, and it exhibits a wide angle tail structure on a very small linear scale. The source structure consists of a weak core, two symmetric jets, and lobes which are bent by nearly 90 deg with respect to the jet direction. It is suggested that the source is slightly foreshortened by projection effects, and that the bendings occur at the ISM/IGM transition surface. A simple ram pressure model is invoked to model the source structure, with the condition that the jet velocity is decreasing along the jet. A comparison with other sources with similar shape is also given.

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