High-resolution observations of 3C219 at 1.48 and 4.89 GHz

Details High-resolution observations of 3C219 at 1.48 and 4.89 GHz High-resolution observations of 3C219 at 1.48 and 4.89 GHz

May 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980aj.....85..499p&link_type=abstract

Astronomical Journal, vol. 85, May 1980, p. 499-506. Research supported by the Natural Sciences and Engineering Research Council

Astronomy and Astrophysics

Astronomy

51

Astronomical Maps, High Resolution, Microwave Spectra, Radio Galaxies, Linear Polarization, Magnetic Field Configurations, Radio Astronomy, Radio Telescopes

Scientific paper

The VLA has been used to make high-resolution maps of the double radio galaxy 3C219 at 1.48 and 4.89 GHz. The radio jet in 3C219 contains two main components, each of which is composed of two or more subcomponents. The jet is highly polarized with the magnetic field oriented along its length, and its width decreases with increasing distance from the nucleus. In both of these characteristics, the jet in 3C219 differs appreciably from the jets in low-luminosity radio galaxies recently mapped at the VLA. The two distant lobes of 3C219 both contain compact structure. In the south-preceding lobe, this structure is L-shaped, while in the north-following lobe it is a nearly complete circular ring. The degree of linear polarization is high throughout both lobes, both in the compact structures and in the diffuse regions which surround them. The magnetic field configuration in the northern lobe is circumferential, both in the diffuse region and in the compact ring.

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