The 2dF QSO Redshift Survey - 10K@2K!

被引：1

作者：

Shanks, T ^{[1
]}

Boyle, BJ ^{[1
]}

Croom, SM ^{[1
]}

Hoyle, F ^{[1
]}

Loaring, N ^{[1
]}

Miller, L ^{[1
]}

Outram, PJ ^{[1
]}

Smith, RJ ^{[1
]}

机构：

[1] Univ Durham, Durham DH1 3LE, England

来源：

MINING THE SKY | 2001年

关键词：

D O I：

10.1017/CBO9780511616686.007

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Within approximate to 10000 QSO redshifts, the 2dF QSO Redshift Survey (2qZ) is already the biggest individual QSO survey. The aim for the survey is to have approximate to 25000 QSO redshifts, providing an order of magnitude increase in QSO clustering statistics. We first describe the observational parameters of the 2dF QSO survey. We then describe several highlights of the survey so far; we present new estimates of the QSO luminosity function and the QSO correlation function. We also present the first estimate of the QSO power spectrum from the 2QZ catalogue, probing the form of the fluctuation power-spectrum out to the approximate to 1000h(-1) Mpc scales only previously probed by COBE. We find a power spectrum which is steeper than the prediction of standard CDM and more consistent with the prediction of Lambda -CDM. The best-fit value for the power spectrum shape parameter for a range of cosmologies is Gamma = 0.1 +/- 0.1. Finally, we discuss how the complete QSO survey will be able to constrain the value Of Omega (Lambda) by combining results from the evolution of QSO clustering and from a geometric test of clustering isotropy.

引用

页码：143 / 153

页数：11

共 27 条

[1] EVOLUTION FREE TEST FOR NON-ZERO COSMOLOGICAL CONSTANT [J].