Compact Radio Sources and Nuclear Activity in Seyfert Galaxies

Details Compact Radio Sources and Nuclear Activity in Seyfert Galaxies Compact Radio Sources and Nuclear Activity in Seyfert Galaxies

1996-03-29

arxiv.org/abs/astro-ph/9603161v1

Astrophys.J.468:475,1996

Astronomy and Astrophysics

Astrophysics

20 pages, latex file with macros included, 7 figures and 6 tables (automatically included)

Scientific paper

10.1086/177709

Using recent high-resolution radio observations of a large sample of Seyfert galaxies (Roy et al. 1994), we analyze the relations between the compact radio core emission and several nuclear and host galaxy properties. Seyfert nuclei hosted in early-type galaxies or in object with nearby companions show stronger radio cores than the norm. Radio core emission show some correlation with total radio emission and with tracers of nuclear activity (mid-IR, hard X-ray and narrow-line emissions). This favours the view that Seyfert radio cores are powered by AGN rather than by radio supernovae.

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