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The evolution of the clustering of QSOs

F. La Franca·P. Andreani·S. Cristiani
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Abstract

The evolution of QSO clustering is investigated with a new sample of 388 QSOs with 0.3<z<2.2, B<20.5 and M_B<-23. Evidence is found for an increase of the clustering amplitude with increasing redshift. These measurements allow to further distinguish among the various physical scenarios proposed to interpret the QSO phenomenon. A single population model is inconsistent with the observations. The general properties of the QSO population would arise naturally if quasars are short-lived events connected to a characteristic halo mass ~5x10^{12} M_sun.

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F. La Franca, P. Andreani, S. Cristiani. 1998-02-22. The evolution of the clustering of QSOs. https://arxiv.org/abs/astro-ph/9802281

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