Asiago-ESO/RASS QSO survey. I.

DOI

This paper presents the first results of a survey for bright quasars (V<14.5 and R30{deg}. 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 15.5mag turns out to be (10+/-2)x10^-3^deg^-2^, about 3 times higher than that estimated by the Palomar-Green (PG) survey. The quasar optical luminosity function (LF) at 0.04

Identifier
DOI http://doi.org/10.26093/cds/vizier.51192540
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/AJ/119/2540
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/119/2540
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/119/2540
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/AJ/119/2540
Provenance
Creator Grazian A.; Cristiani S.; D'Odorico V.; Omizzolo A.; Pizzella A.
Publisher CDS
Publication Year 2002
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Cosmology; Galactic and extragalactic Astronomy; High Energy Astrophysics; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy