Radio observations of the giant quasar 4C 34.47

Astronomy and Astrophysics – Astronomy

Scientific paper

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Astronomical Spectroscopy, Quasars, Radio Astronomy, Radio Spectra, Radio Telescopes, Astronomical Models, Interstellar Magnetic Fields, Linear Polarization, Radiant Flux Density, Temperature Distribution, Very Long Base Interferometry

Scientific paper

Multifrequency measurements of the giant radio source associated with the quasar 4C 34.47 are presented. The source, which is about 7 arcmin in total extent with a prominent central core, has been mapped at 4995, 1415, and 610 MHz with the WSRT, and is shown to be edge-brightened. Significant linear polarization has been detected from the outer hot spots with directions which indicate that the magnetic field bends around the hot spots. The central core of the source is variable. VLBI observations on European baselines of the core show it to be extended along the large scale axis of the source.

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