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The Distribution of Radio Polarisation in Three Southern Galaxies

Published online by Cambridge University Press:  25 April 2016

J. I. Harnett ,
U. Klein ,
R. Wielebinski  and
R. F. Haynes
J. I. Harnett
Affiliation:
School of Physics, University of Sydney, NSW 2006
U. Klein
Affiliation:
Max-Planck-Institut für Radioastronomie, Bonn, Germany
R. Wielebinski
Affiliation:
Max-Planck-Institut für Radioastronomie, Bonn, Germany
R. F. Haynes
Affiliation:
Australia Telescope National Facility, Epping NSW 2121
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Abstract

We are studying the distribution and morphology of magnetic fields in southern face-on and edge-on galaxies with the intention of clarifying the distribution, lifetimes and transport mechanisms of cosmic rays, and investigating the intensity and orientation of the disc, halo and poloidal magnetic fields. As a preliminary study, before the Australia Telescope was available, we observed a sample of well-known southern spiral galaxies with the Parkes radio telescope.

Here, we present the resulting polarisation images for three galaxies, NGC 253, M 83 and NGC 4945, which were observed at 4.75 GHz and 8.55 GHz. The corresponding total power contour plots have been already published by Harnett et al. (1989a, 1990).

Type
Extragalactic
Information
Publications of the Astronomical Society of Australia , Volume 9 , Issue 2 , 1991 , pp. 266 - 268
Copyright
Copyright © Astronomical Society of Australia 1991

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