Abstract:Aims. We study the dependence of the dynamical properties of massive (M ≥ 1.5 × 1013 M⊙ h−1) dark matter halos on their environment in a whole-sky ΛCDM light-cone simulation extending to z ∼ 0.65. The properties of interest for this study are the halo shape (parametrized via its principal axes), spin and virialization status, the alignment of halo spin and shape, as well as the shape-shape and spin-spin alignments among halo neighbors.
Methods. We define the halo environment using the notion of halo isolation … Show more
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