2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/169833Study of astrophysical objects with strong dipolar magnetic fields show that the spectrum of the accelerated charged particles leaving the sources has a power law form with exponent -2.5, where the exponent is calculated on purely geometrical bases and is independent on the particle species.AstrophysicsClassical Physicstext