English

Solitary Alfv\'en Waves

Solar and Stellar Astrophysics 2026-02-04 v2 High Energy Astrophysical Phenomena Plasma Physics Space Physics

Abstract

We present the solitary Alfv\'en wave, an exact nonlinear solution of the ideal magnetohydrodynamic (MHD) equations, and construct a three-dimensional numerical model -- an \emph{Alfv\'enon}. The model is characterized by an unperturbed far field, quasi-constant B|\boldsymbol{B}|, and open field-line topology. Direct MHD simulations of the Alfv\'enon demonstrate remarkable stability, confirming that it behaves as a nonlinear solitary Alfv\'enic solution under ideal MHD evolution.

Cite

@article{arxiv.2512.02292,
  title  = {Solitary Alfv\'en Waves},
  author = {Zesen Huang and Marco Velli and Chen Shi and Yuliang Ding},
  journal= {arXiv preprint arXiv:2512.02292},
  year   = {2026}
}
R2 v1 2026-07-01T08:04:50.804Z