CAIRNS: The Cluster And Infall Region Nearby Survey I. Redshifts and Mass Profiles

The CAIRNS (Cluster And Infall Region Nearby Survey) project is a nspectroscopic survey of the infall regions surrounding eight nearby, rich, nX-ray luminous clusters of galaxies. We collect 15665 redshifts (3471 new or nremeasured) within sim 5-10 Mpc of the centers of the clusters, making it the nlargest study of the infall regions of clusters. We..