Abstract:
:I describe some recent observations of large-scale structure in the galaxy distribution. The best constraints come from two-dimensional galaxy surveys and studies of angular correlation functions. Results from galaxy redshift surveys are much less precise but are consistent with the angular correlations, provided the distortions in mapping between real-space and redshift-space are relatively weak. The galaxy two-point correlation function, rich-cluster two-point correlation function, and galaxy-cluster cross-correlation function are all well described on large scales ( greater, similar 20h-1 Mpc, where the Hubble constant, H0 = 100h km.s-1.Mpc; 1 pc = 3.09 x 10(16) m) by the power spectrum of an initially scale-invariant, adiabatic, cold-dark-matter Universe with Gamma = Omegah approximately 0.2. I discuss how this fits in with the Cosmic Background Explorer (COBE) satellite detection of large-scale anisotropies in the microwave background radiation and other measures of large-scale structure in the Universe.
journal_name
Proc Natl Acad Sci U S Aauthors
Efstathiou Gdoi
10.1073/pnas.90.11.4859keywords:
subject
Has Abstractpub_date
1993-06-01 00:00:00pages
4859-66issue
11eissn
0027-8424issn
1091-6490journal_volume
90pub_type
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
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doi:10.1073/pnas.81.6.1922
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
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更新日期:2011-08-02 00:00:00