2026-04-17T05:12:33Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1836662025-11-21T05:50:53Zcom_2072_1057col_2072_478823col_2072_478904col_2072_478917

00925njm 22002777a 4500 dc Salvador Solé, Eduard author Manrique Oliva, Alberto author 2022-03-01T18:17:53Z 2022-03-01T18:17:53Z 2021-06-24 2022-03-01T18:17:53Z The ConflUent System of Peak trajectories (CUSP) is a rigorous formalism in the framework of the peak theory that allows one to derive from first principles andno free parameters the typical halo properties from the statistics of peaks in the filtered Gaussian random field of density perturbations. The predicted halo mass function, spherically averaged density, velocity dispersion, velocity anisotropy, ellipticity, prolateness and potential profiles, as well as the abundance and number density profiles of accreted and stripped subhalos and diffuse dark matter accurately recover the results of cosmological $N$-body simulations. CUSP is thus a powerful tool for the calculation, in any desired hierarchical cosmology with Gaussian perturbations, of halo properties beyond the mass, redshift and radial ranges covered by simulations. More importantly, CUSP unravels the origin of the characteristic features of those properties. In the present Paper we culminate its construction. We show that all halo properties but those related with subhalo stripping are independent of the assembly history of those objects, and that the Gaussian is the only smoothing window able to find the finite collapsing patches while properly accounting for the entropy increase produced in major mergers. Cosmologia Galàxies Matèria fosca (Astronomia) Cosmology Galaxies Dark matter (Astronomy) Culminating the Peak Cusp to Descry the Dark Side of Halos