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Cosmic Flows: Review of Recent Developments

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arxiv astro-ph/0206052 v2 pith:FF4LTXMR submitted 2002-06-04 astro-ph

Cosmic Flows: Review of Recent Developments

classification astro-ph
keywords flowcosmicdevelopmentsbulkcatalogsdatameasurementspeculiar
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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abstract

I review the recent developments in the analysis of cosmic flow data, in particular, latest results of bulk flow measurements, comparison between redshift and peculiar velocity catalogs with emphasis on the measured value of the $\beta (=\Omega_m^{0.6}/b)$ parameter, and matter power spectrum estimates from galaxy peculiar velocity catalogs. Based on these developments, one can argue that most of the previous discrepancies in the interpretation of cosmic flow data, {\it maybe} with the exception of bulk flow measurements on scales $\gsim 100 h{^{-1}}{\rm Mpc}$, have either been resolved or fairly understood.

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