Polarized radio emission from NGC 4945

Details Polarized radio emission from NGC 4945 Polarized radio emission from NGC 4945

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...216...39h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 216, no. 1-2, June 1989, p. 39-43. Research supported by Max-Planck-Institut f

Astronomy and Astrophysics

Astrophysics

28

Galactic Radio Waves, Interstellar Magnetic Fields, Polarized Electromagnetic Radiation, Spiral Galaxies, Active Galactic Nuclei, Astronomical Models, Magnetic Field Configurations

Scientific paper

Observations at 4.75 GHz of the large southerm edge-on spiral galaxy NGC 4945 with the Parkes 64-m telescope are reported. The galaxy exhibits an unusual distribution of linearly polarized radio emission: two maxima of polarized emission are located at about 2.4 kpc z-distance (on either side of the plane of the galaxy), with the line joining them passing the active center at an angle of about 40 deg with respect to the z-axis. These maxima are reminiscent of the peculiar features seen in the spiral galaxy NGC 4258 (with medium angular resolution) which is famous for its anomalous radio arms.

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