标题： 从VIRMOS类星体中我们可以学到什么？ 显示英文标题

标题： What can we learn from VIRMOS quasars?

摘要： 大型、均质的类星体样本是研究类星体统计、宇宙学检验、大尺度结构和活动星系核演化的必要工具。 这些样本必须在所有红移下在定义明确的流量极限内是完整的。 描述了一种无需先前光度选择类星体候选者的观测策略，该策略基本上基于VIRMOS巡天的光谱学。 显示英文摘要

摘要： Large, homogeneous quasar samples are necessary tools for the study of QSO statistics, cosmological tests, large scale structure and AGN evolution. These samples must be complete within well defined flux limits at all redshifts. An observational strategy without previous photometric selection of quasar candidates is described, based essentially on the VIRMOS Survey spectroscopy.