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AGN and Starburst Galaxies Seen through Radio Surveys

L. Gregorini·I. Prandoni·H. R. de Ruiter·P. Parma·G. Vettolani·A. Zanichelli·M. H. Wieringa·R. D. Ekers
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Abstract

The emergence of a new population of radio galaxies at mJy and sub-mJy levels is responsible for the change in the slope of the radio source counts. This population seems to include both star forming galaxies and classical (AGN-powered) radio sources, but the relative importance of the two classes is still debated. We present results from the ATESP radio survey and its optical follow-up and show that the fraction of starburst galaxies changes from ~15% at fluxes >1 mJy to >50% at lower fluxes.

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L. Gregorini, I. Prandoni, H. R. de Ruiter, P. Parma, G. Vettolani, A. Zanichelli, M. H. Wieringa, R. D. Ekers. 2000-10-19. AGN and Starburst Galaxies Seen through Radio Surveys. https://arxiv.org/abs/astro-ph/0010384

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