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astro-ph1999
High Redshift Clusters and Protoclusters
Marc Postman
Our understanding of the cosmic history of galaxy clusters has recently been enhanced due to an extensive series of observations including faint spectroscopic data (especially thos…
astro-ph1999
First Results from the Shellflow Survey
S. Courteau, J. A. Willick, M. A. Strauss +2
We present preliminary results from the Shellflow program, an all-sky Tully-Fisher (TF) survey of 297 Sb-Sc with redshifts between 4000 and 7500 km/s. The program was designed to e…
astro-ph1999
The CFH Optical PDCS Survey (COP): First results
C. Adami, B. Holden, A. Mazure +5
We present the first results of the COP survey about the reality of the PDCS clusters, about their velocity dispersions and dynamic and about the periodicity of the structures alon…