Observations of M87 at 15.4 GHz with the 5-km telescope

Details Observations of M87 at 15.4 GHz with the 5-km telescope Observations of M87 at 15.4 GHz with the 5-km telescope

Nov 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980mnras.193..427l&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 193, Nov. 1980, p. 427-437. Research supported by the Science Research

Astronomy and Astrophysics

Astronomy

29

Astronomical Maps, Elliptical Galaxies, Radio Galaxies, Virgo Galactic Cluster, Interstellar Magnetic Fields, Plasma Jets

Scientific paper

The radio galaxy M87 has been mapped with a resolution of 0.67 x 2.1 sq arcsec using the Cambridge 5-km telescope at a frequency of 15.4 GHz. The radio jet consists of discrete knots separated by regions of low surface brightness within approximately 20 arcsec of the nucleus, but merges into a diffuse ridge of emission at larger distances. The jet appears to oscillate from side to side with an amplitude which increases with increasing distance from the nucleus; observations of the linearly polarized emission show that the magnetic field within the jet is well ordered and aligned with its axis.

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