Activity in LINER and starburst galaxies

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Active Galaxies, Emission Spectra, Nuclear Radiation, Starburst Galaxies, Line Spectra, Metallicity

Scientific paper

We find, using narrow-band imaging, a direct spatial coincidence between the location of bright forbidden Fe II 1.64 micron line emission and compact steep spectrum radio sources in the nuclear region of the starburst galaxy NGC 253. For a large sample of active galaxies (starburst, LINER, and Seyferts) we also find a strong correlation between the integrated nuclear forbidden Fe II 1.64 micron and 6 cm radio luminosity. Both the spatial and integrated relations are interpreted in terms of supernova activity. There is evidence that extragalactic SNRs can be more luminous than their counterparts in the Galaxy.

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