PreprintarXiv licencearXiv
Nonthermal Particle Acceleration by Magnetic Pumping in Pulsating Plasmas
Abstract
We present a new pulsating box setup to investigate particle acceleration in high-beta plasmas undergoing compression--expansion cycles. Our fully kinetic simulations show that particles are efficiently accelerated by magnetic pumping, producing nonthermal energy distributions with power-law tails. Numerical results are in excellent agreement with a generalized maximum entropy model that we derive, linking the power-law index of distributions to the injected energy. Our results could be relevant for understanding the origin of high-energy particles in certain high-beta space and astrophysical plasmas.
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BibTeX
@misc{arro2026nonthermal,
title = {{Nonthermal Particle Acceleration by Magnetic Pumping in Pulsating Plasmas}},
author = {Giuseppe Arrò and Vladimir Zhdankin and Fabio Bacchini},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2606.05286},
eprint = {2606.05286},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2606.05286},
}
RIS
TY - UNPB
TI - Nonthermal Particle Acceleration by Magnetic Pumping in Pulsating Plasmas
AU - Giuseppe Arrò
AU - Vladimir Zhdankin
AU - Fabio Bacchini
PY - 2026
DA - 2026/10/26
PB - arXiv
DO - 10.48550/arxiv.2606.05286
UR - https://arxiv.org/abs/2606.05286
AB - We present a new pulsating box setup to investigate particle acceleration in high-beta plasmas undergoing compression--expansion cycles. Our fully kinetic simulations show that particles are efficiently accelerated by magnetic pumping, producing nonthermal energy distributions with power-law tails. Numerical results are in excellent agreement with a generalized maximum entropy model that we derive, linking the power-law index of distributions to the injected energy. Our results could be relevant for understanding the origin of high-energy particles in certain high-beta space and astrophysical plasmas.
ER -