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 ~5 cdot 1012 M_odot.

LA FRANCA, F., Andreani, P., Cristiani, S. (1999). The evolution of the clustering of QSOs. In Observational Cosmology: The Development of Galaxy Systems (pp.341). SAN FRANCISCO : Astronomical Society of the Pacific.

The evolution of the clustering of QSOs

LA FRANCA, Fabio;
1999-01-01

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 ~5 cdot 1012 M_odot.
1999
LA FRANCA, F., Andreani, P., Cristiani, S. (1999). The evolution of the clustering of QSOs. In Observational Cosmology: The Development of Galaxy Systems (pp.341). SAN FRANCISCO : Astronomical Society of the Pacific.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/169855
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