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arXiv · astro-ph/0112341

The mass of radio galaxies from low to high redshift

Matt J. Jarvis·Steve Rawlings·Steve Eales·Katherine M. Blundell·Chris J. Willott
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Abstract

Using a new radio sample, 6C* designed to find radio galaxies at z > 4 along with the complete 3CRR and 6CE sample we extend the radio galaxy K-z relation to z~4.5. The 6C* K-z data significantly improve delineation of the K-z relation for radio galaxies at high redshift (z >2). In a spatially flat universe with a cosmological constant (Omega_M=0.3 and Omega_Lambda=0.7), the most luminous radio sources appear to be associated with galaxies with a luminosity distribution with a high mean (~5L*), and a low dispersion (~0.5 mag) which formed their stars at epochs corresponding to z >~ 2.5.

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Matt J. Jarvis, Steve Rawlings, Steve Eales, Katherine M. Blundell, Chris J. Willott. 2001-12-14. The mass of radio galaxies from low to high redshift. https://doi.org/10.1007/10899892_36

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