http://arxiv.org/abs/1602.04298
We propose a mixture evolution scenario to model the evolution of the steep spectrum AGN (active galactic nuclear) radio luminosity function (RLF) based on a Bayesian method. In this scenario, the shape of RLF is determined together by the density and luminosity evolution. Our models indicate that the density evolution is positive until a redshift of $\thicksim 0.9$ and then turns to be negative, while the luminosity evolution is positive to a higher redshift ($z \thicksim 5$ for model B and $z \thicksim 3.5$ for model C) and then turns to be negative. Our mixture evolution model works well, and the modeled RLFs are in good agreement with previous determinations. The mixture evolution scenario can naturally explain the luminosity dependent evolution of the RLFs.
Z. Yuan, J. Wang, M. Zhou, et. al.
Tue, 16 Feb 16
66/71
Comments: 7 pages, 5 figures, accepted for publication in ApJ
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