Published in
Oxford University Press (OUP), Monthly Notices of the Royal Astronomical Society, 2(351), p. L44-L48
DOI: 10.1111/j.1365-2966.2004.07962.x
Links
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- Oxford University Press (OUP) | PDF
- [arxiv.org] | PDF
- [purl.org]
- [www.researchgate.net] | PDF
- [arxiv.org] | PDF
- [citeseerx.ist.psu.edu] | PDF
- [arxiv.org] | PDF
- [cds.cern.ch] | PDF
- [doc.rero.ch] | PDF
Tools
The 2dF Galaxy Redshift Survey: Hierarchical galaxy clustering
,
M. Colless ,
I. K. Baldry,
J. Bland-Hawthorn,
T. Bridges,
R. Cannon,
S. Cole ,
C. Collins,
W. Couch,
G. Dalton
and other authors.
Full text: Download
Abstract
We use the two-degree field Galaxy Redshift Survey (2dFGRS) to test the hierarchical scaling hypothesis: namely, that the $p$-point galaxy correlation functions can be written in terms of the two point correlation function or variance. This scaling is expected if an initially Gaussian distribution of density fluctuations evolves under the action of gravitational instability. We measure the volume averaged $p$-point correlation functions using a counts in cells technique applied to a volume limited sample of 44,931 $L_*$ galaxies. We demonstrate that $L_{*}$ galaxies display hierarchical clustering up to order $p=6$ in redshift space. The variance measured for $L_{*}$ galaxies is in excellent agreement with the predictions from a $Λ$-cold dark matter N-body simulation. This applies to all cell radii considered, $0.3