2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/98238The distribution of collisionless particles with infinite motion in the presence of a local potential well is discussed. Such distribution is important for interpretation of results of dark matter searches. The relationship n/v=const, where n and v are respectively number density and velocity of particles, is derived for particles crossing a local potential well. The limits of application of this relationship are specified.6 pages, 1 figureAstrophysicstext