A study of the 5 arcmin halo of 3C 84

Details A study of the 5 arcmin halo of 3C 84 A study of the 5 arcmin halo of 3C 84

Sep 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....89..204r&link_type=abstract

Astronomy and Astrophysics, vol. 89, no. 1-2, Sept. 1980, p. 204-206. Deutsche Forschungsgemeinschaft

Astronomy and Astrophysics

Astronomy

8

Galactic Radiation, Radio Galaxies, Radio Sources (Astronomy), Antenna Radiation Patterns, Radio Astronomy, Radio Telescopes

Scientific paper

High dynamic range observations were made at 6.2 and 2.8 cm wavelength of 3C 84 (NGC 1275, Perseus A) with the 100-m Effelsberg radio telescope. The 6.2 cm map shows the asymmetric 5 arcmin halo previously detected only at longer wavelengths. The steepening of the spectral index of this halo from north to south across its western extension is confirmed. In addition, a low upper limit can be set for the halo emission at 2.8 cm wavelength. Some consequences of these observations are discussed.

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