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The APM QSO Survey: Description and Status Report
Published online by Cambridge University Press: 07 August 2017
Abstract
The APM QSO survey is a quantitative survey aimed at finding a large sample (∼ 1000) of QSOs using broadly-based selection criteria applied to machine-scanned UK Schmidt Telescope direct and objective-prism plates. The survey is currently entering its third year and, as of August 1988, the sample consists of ∼ 700 QSOs with mJ ≥ 18.75 in the range 0.2 ≤ z ≤ 3.3. Preliminary analysis suggests that the sample is relatively free of the selection effects endemic to most QSO surveys based on slitless spectroscopy.
- Type
- Part 1: Surveys, Luminosity Functions, and Evolution
- Information
- Symposium - International Astronomical Union , Volume 134: Active Galactic Nuclei , 1989 , pp. 25 - 30
- Copyright
- Copyright © Kluwer 1989