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Evidence for a Low-Density Universe from the Relative Velocities of Galaxies | Synapse

January 7, 2000Open Access

Evidence for a Low-Density Universe from the Relative Velocities of Galaxies

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Resumen

The motions of galaxies can be used to constrain the cosmological density parameter Omega and the clustering amplitude of matter on large scales. The mean relative velocity of galaxy pairs, estimated from the Mark III survey, indicates that Omega = 0.35(-0.25)(+0.35). If the clustering of galaxies is unbiased on large scales, Omega = 0. 35 +/- 0.15, so that an unbiased Einstein-de Sitter model (Omega = 1) is inconsistent with the data.

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Cite This Study

Juszkiewicz et al. (Fri,) studied this question.

synapsesocial.com/papers/6a12dfc55bb7edc7189e66df https://doi.org/https://doi.org/10.1126/science.287.5450.109

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