Acceleration of dust particles by low-frequency Alfvén waves

Details Acceleration of dust particles by low-frequency Alfvén waves Acceleration of dust particles by low-frequency Alfvén waves

2007-12-22

arxiv.org/abs/0712.3845v1

Physics

Plasma Physics

8 pages, no figs, accepted in Phys. Lett. A

Scientific paper

10.1016/j.physleta.2007.12.061

We investigate the efficiency of acceleration of charged dust particles by low-frequency Alfv\'en waves in nonlinear approximation. We show that the longitudinal acceleration of dust particles is proportional to the square of the soliton amplitude $O(|b_m|^2)$, while the transversal acceleration is of $O(|b_m|)$. In the conditions of the interstellar medium the resulting velocity of dust particles can reach 0.3 to 1 km s$^{-1}$.

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