A universal scaling relation incorporating the cusp-to-core transition of dark matter haloes
Approach
The concentration–mass relation from cosmological N-body simulations is used to derive observable scaling relations, including a prescription for transforming cuspy haloes into cored ones.
Main result
The predicted relations account for observed dwarf- and galaxy-scale trends. The study extends the predictions to clusters and proposes scaling diagnostics sensitive to core formation.
Scientific implications
This provides a shared framework for interpreting halo regularities across masses and testing structural changes driven by galaxy evolution.
Scope and limitations
The cluster extension and proposed transformation diagnostics are predictions; agreement with a scaling law alone does not prove a cusp-to-core transition.