The Asiago-ESO/RASS QSO survey. 1.The Catalog and the local QSO luminosity function - INSPIRE

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The Asiago-ESO/RASS QSO survey. 1.The Catalog and the local QSO luminosity function

A. Grazian
(
- Padua U., Astron. Dept.
)
,
S. Cristiani
(
- ST-ECF, Garching
)
,
V. D'Odorico
(
- SISSA, Trieste
)
,
A. Omizzolo
(
- Vatican Astron. Observ.
)
,
A. Pizzella
(
- European Southern Obs., Chile and
- Padua U., Astron. Dept.
)

Feb, 2000

54 pages

Published in:

Astron.J. 119 (2000) 2540

e-Print:

astro-ph/0002183 [astro-ph]

DOI:

10.1086/301398

Report number:

ESO-1363

View in:

ADS Abstract Service

reference search24 citations

Citations per year

Abstract: (arXiv)

This paper presents the first results of a survey for bright quasars (V < 14.5 and R<15.4) covering the North Hemisphere at galactic latitudes |b|>30. The photometric database is derived from the GSC 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

9 \pm 1 \cdot 10^{-3} deg^{-2}

, about 3 times higher than that estimated by the PG survey. The quasar optical Luminosity Function (LF) at

0.04 < z \le 0.3

is computed and shown to be consistent with a Luminosity Dependent Luminosity Evolution of the type derived by La Franca and Cristiani (1997) in the range

0.3 < z \le 2.2

. The predictions of semi-analytical models of hierarchical structure formation agree remarkably well with the present observations.

CLUSTERS: QUASARS, GENERAL

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