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The 2dF QSO Redshift Survey - XIII. A Measurement of Lambda from the QSO Power Spectrum

Abstract:

We report on measurements of the cosmological constant, Lambda, and the redshift space distortion parameter beta=Omega_m^0.6/b, based on an analysis of the QSO power spectrum parallel and perpendicular to the observer's line of sight, from the final catalogue of the 2dF QSO Redshift Survey. We derive a joint Lambda - beta constraint from the geometric and redshift-space distortions in the power spectrum. By combining this result with a second constraint based on mass clustering evolution, we ...

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Publication status:
Published

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Journal:
Mon.Not.Roy.Astron.Soc.
Volume:
348
Issue:
3
Pages:
745
Publication date:
2003-10-30
DOI:
ISSN:
0035-8711
URN:
uuid:4a68c7d4-9be4-45ff-b839-ddbd3e76ee83
Source identifiers:
26408
Local pid:
pubs:26408
Keywords:

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