Magnetoclinicity Instability
Solar and Stellar Astrophysics
2022-05-31 v1 Fluid Dynamics
Plasma Physics
Abstract
In strongly compressible magnetohydrodynamic turbulence, obliqueness between the large-scale density gradient and magnetic field gives an electromotive force mediated by density variance (intensity of density fluctuation). This effect is named ``magnetoclinicity'', and is expected to play an important role in large-scale magnetic-field generation in astrophysical compressible turbulent flows. Analysis of large-scale instability due to the magnetoclinicity effect shows that the mean magnetic-field perturbation is destabilised at large scales in the vicinity of strong mean density gradient in the presence of density variance.
Keywords
Cite
@article{arxiv.2205.14453,
title = {Magnetoclinicity Instability},
author = {Nobumitsu Yokoi and Steven M. Tobias},
journal= {arXiv preprint arXiv:2205.14453},
year = {2022}
}
Comments
8 pages, 2 figures, iTi (interdisciplinary Turbulence initiative) 2021