Gravitational lensing detection of an extremely dense environment around a galaxy cluster
Galaxy clusters form at the highest-density nodes of the cosmic web1,2. The clustering of dark matter halos hosting these galaxy clusters is enhanced relative to the general mass distribution, with the matter density beyond the virial region being strongly correlated to the halo mass (halo bias)3. Halo properties other than mass can further enhance
Sereno, M. et al.
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2018