The splashback radius of halos from particle dynamics. II. Dependence on mass, accretion rate, redshift, and cosmology

Benedikt Diemer, Philip Mansfield, Andrey V. Kravtsov +1

The splashback radius $R_{\mathrm{sp}}$, the apocentric radius of particles on their first orbit after falling into a dark matter halo, has recently been suggested as a physically motiv…