Radio structures of Seyfert galaxies. I

Details Radio structures of Seyfert galaxies. I Radio structures of Seyfert galaxies. I

Sep 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...240..429w&link_type=abstract

Astrophysical Journal, Part 1, vol. 240, Sept. 1, 1980, p. 429-441.

Astronomy and Astrophysics

Astronomy

165

Astronomical Maps, Galactic Structure, Radio Sources (Astronomy), Seyfert Galaxies, Astronomical Models, Early Stars, Quasars, Spiral Galaxies, Very Large Array (Vla)

Scientific paper

Radio maps of 10 Seyfert and Seyfert-like galaxies have been made with the Very Large Array at 4.885 GHz. The radio sources have overall linear extents in the range 0.8 to 5.7 kpc, with most near 1 or 2 kpc, a scale close to that of the forbidden line region (FLR). For at least two galaxies (NGC 1068 and NGC 5548) the radio structure is triple, with two components straddling the optical continuum nucleus and the third coincident with it. A third example of a double radio source in a Seyfert galaxy is Mrk 3. Although the SW component in NGC 1068 may be associated with a group of young stars, the structures of NGC 5548 and Mrk 3 suggest that conditions suitable for ejection of double radio sources exist in the nuclei of some active spiral and S0 galaxies, as well as ellipticals. Implications of the present results for models of superluminally expanding radio sources and radio-quiet quasars are briefly noted.

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