Cosmic downsizing of powerful radio galaxies to low radio luminosities

Aims. At bright radio powers (P1.4 GHz > 1025 W/Hz) the space density of the most powerful sources peaks at higher redshift than that of their weaker counterparts. This paper establishes whether this luminosity-dependent evolution persists for sources an order of magnitude fainter than those prev...

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Veröffentlicht in:	Astronomy and astrophysics (Berlin) 2015-09, Vol.581, p.1-7
Hauptverfasser:	Rigby, E. E., Argyle, J., Best, P. N., Rosario, D., Röttgering, H. J. A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomical models Astronomy galaxies: active galaxies: evolution galaxies: high-redshift Luminosity Radio Radio galaxies Radio sources (astronomy) Red shift Space density
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