An estimate of Ω_m without priors
Using mean relative peculiar velocity measurements for pairs of galaxies, we estimate the cosmological density parameter $\Omega_m$ and the amplitude of density fluctuations $\sigma_8$. Our results suggest that our statistic is a robust and reproducible measure of the mean pairwise velocity and ther...
Main Authors: | Feldman, H, Juszkiewicz, R, Ferreira, P, Davis, M, Gaztanaga, E, Fry, J, Jaffe, A, Chambers, S, Costa, L, Bernardi, M, Giovanelli, R, Haynes, M, Wegner, G |
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格式: | Journal article |
出版: |
2003
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