标题： 2dF类星体红移巡天 显示英文标题

标题： The 2dF QSO Redshift Survey

摘要： 我们展示了目前正在澳大利亚天文台进行的2度视场（2dF）类星体红移巡天的初步结果。该巡天旨在测定超过25000个红移范围在0.3<z<3.0之间的类星体的红移，主要目标是研究宇宙中高红移和非常大尺度（~1000h-1Mpc）上的大尺度结构。我们描述了用于选择类星体候选者进行光谱观测的测光程序。然后我们描述了首次2dF观测的结果，这些观测已经测量了超过1000个类星体的红移。我们已经发现了显著的聚类迹象，并且还找到了一对可能的引力透镜候选类星体（分离17''）。欲了解巡天的最新进展，请访问：http://msowww.anu.edu.au/~rsmith/QSO_Survey/qso_surv.html 显示英文摘要

摘要： We present preliminary results from the 2-degree Field (2dF) QSO Redshift Survey currently under way at the Anglo-Australian Telescope. This survey aims to determine the redshifts of >25000 QSOs over a redshift range of 0.3<z<3.0 with the primary goal of investigating large-scale structure in the Universe to high redshift and at very large scales (~1000h-1Mpc). We describe the photometric procedure used to select QSO candidates for spectroscopic observation. We then describe results from our first 2dF observations, which have so far measured the redshifts for over 1000 QSOs. We already find a significant detection of clustering and have also found one close pair of QSOs (separation 17'') which are gravitational lens candidates. To keep up to date with the current progress of the survey see: http://msowww.anu.edu.au/~rsmith/QSO_Survey/qso_surv.html