A histogram of the orbital energies of all particles that initially belonged to the satellite but became unbound to it in the course of the first orbit (tidal debris particles). The two peaks correspond to the two tidal arms torn out of the satellite. The central gap coincides with the orbital energy Esat of the remaining satellite system. The dashed red line shows the fitting function (Eq. (17)), which is used to characterize the distribution. The meaning of the fitting parameter ϵw, which is used to determine the width of the high energy peak, is also indicated.
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