SIMBAD references

2000AJ....119.2540G - Astron. J., 119, 2540-2555 (2000/June-0)

The Asiago-ESO/RASS QSO survey. I. The catalog and the local QSO luminosity function.

GRAZIAN A., CRISTIANI S., D'ODORICO V., OMIZZOLO A. and PIZZELLA A.

Abstract (from CDS):

This paper presents the first results of a survey for bright quasars (V<14.5 and R<15.4) covering the northern hemisphere at Galactic latitudes |b|>30°. The photometric database is derived from the Guide Star and USNO catalogs. Quasars are identified on the basis of their X-ray emission measured in the ROSAT All-Sky Survey. The surface density of quasars brighter than 15.5 mag turns out to be (10±2)x10–3 deg–2, about 3 times higher than that estimated by the PG survey. The quasar optical luminosity function (LF) at 0.04<z≤0.3 is computed and shown to be consistent with a luminosity-dependent luminosity evolution of the type derived by La Franca & Cristiani in the range 0.3<z≤2.2. The predictions of semianalytical models of hierarchical structure formation agree remarkably well with the present observations.

Abstract Copyright:

Journal keyword(s): Galaxies: Clusters: General

VizieR on-line data: <Available at CDS (J/AJ/119/2540): table2.dat table3.dat table4.dat>

Simbad objects: 517

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2019.12.09-22:54:41

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