论文信息 - Cosmological Parameters from the Eigenmode Analysis of the Las Campanas Redshift Survey

Cosmological Parameters from the Eigenmode Analysis of the Las Campanas Redshift Survey

We present the first results of the Karhunen-Loève eigenmodes applied to real data of the Las Campanas Redshift Survey to simultaneously measure the values of the redshift distortion parameter beta=Omega0.60&solm0;b, the linearly extrapolated normalization sigmaL8, and the cold dark matter shape parameter Gamma=Omega0h. The results of our numerical likelihood analysis indicate a low value of beta=0.30+/-0.39, a shape parameter Gamma=0.16+/-0.10, and a linearly extrapolated normalization sigmaL8=0.79+/-0.08, which are consistent with a low-density universe (Omega0 less, similar0.5).

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