Cosmic Flows 99: Conference Summary

Details Cosmic Flows 99: Conference Summary Cosmic Flows 99: Conference Summary

1999-11-29

arxiv.org/abs/astro-ph/9911501v1

Astronomy and Astrophysics

Astrophysics

8 pages LaTeX, 8 embedded figures. paspconf.sty. Higher quality figs from ftp://alf.fiz.huji.ac.il/pub/dekel/vic99/ as adekel*

Scientific paper

I address the following issues: All bulk velocity measurements (but one) are consistent with our standard gravitational instability theory. New accurate data and reconstruction methods allow high-resolution dynamical analysis nearby, revealing Virgo, Ursa Major and Fornax as attractors. Large peculiar-velocity surveys enable robust reconstruction of the dynamical fields on the Great-Attractor scale. A decomposition of the velocity field into its local and tidal components indicates the presence of big perturbations further away. Cluster velocities start exploring very large scales, revealing Coma, Shapely and other mass enhancements, and constraining a possible local Hubble bubble. Supernovae type Ia (SNIa) are very promising for cosmic flow analysis. Peculiar velocities do provide unique valuable constraints on cosmological parameters, e.g., 0.3

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