A high-dimensional look at VIPERS galaxies

2014
We investigate how galaxiesin VIPERS(the VIMOS Public Extragalactic Redshift Survey) inhabit the cosmological density field by examining the correlations across the observable parameter space of galaxyproperties and clustering strength. The high- dimensional analysisis made manageable by the use of group-finding and regression tools. We find that the major trends in galaxyproperties can be explained by a single parameter related to stellar mass. After subtracting this trend, residual correlations remain between galaxyproperties and the local environment pointing to complex formation dependencies. As a specific application of this work we build subsamples of galaxieswith specific clustering properties for use in cosmological tests.
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