The Early History of Powerful Radio Galaxies

Details The Early History of Powerful Radio Galaxies The Early History of Powerful Radio Galaxies

1998-02-12

arxiv.org/abs/astro-ph/9802163v1

Astronomy and Astrophysics

Astrophysics

14 pages, to appear in the proceedings of the KNAW colloquium ``The Most Distant Radio Galaxies'' held in Amsterdam on 15-17 O

Scientific paper

I briefly review the current status of observations of AGN-powered UV/optical light, starlight, dust and outflow phenomena in high-redshift powerful radio galaxies. The existing data are consistent with the hypothesis that powerful radio galaxies undergo a major episode of star formation at high redshift z>4 during which they form most of their stars, and subsequently evolve `passively', with the UV continuum emission in the z~1 galaxies being dominated by AGN-related processes rather than starlight from the underlying, aging population.

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