From the listed results of our simulations of the beam – barrier collision ([@Smolsky96]; [@Usov98]), it follows that at $r\sim r_{\rm dec}$, where $\alpha$ is $\sim 1$, about 70% of the energy losses of the wind are transferred to protons of the ambient medium which are reflected from the wind front. The mean energy of reflected protons is about $m_pc^2\Gamma_0^2$. The other 30% of the wind energy losses are distributed between high-energy electrons and low-frequency electromagnetic waves. As a rule, the total energy in accelerated electrons is a few times more than the total energy in low-frequency waves.

Non-thermal radiation from the region of the wind – ambient medium interaction
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High-energy electrons accelerated at the wind front generate non-thermal radiation while they move in both the magnetic field of the wind and the electromagnetic fields of low-frequency waves that are produced by the non-stationary currents at the wind front.

Synchrotron radiation from the wind front
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In our simulations of the beam – magnetic barrier interaction ([@Smolsky96]; [@Usov98]), the examined space-time domain is

$$x_{\rm min}<x<x_{\rm max},\,\,\,\,\,\,\,\,\,\,0<t<t_{\rm max},
\label{xt}$$

where $x_{\rm max}$ and $-x_{\rm min}$ are equal to a few $\times (1-10)
(c/\omega_{Bp})$, $t_{\rm max}$ is equal to a few 