Magnetoclinicity Instability

Nobumitsu Yokoi; Steven M. Tobias

doi:10.1007/978-3-030-80716-0_37

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arXiv · 2205.14453

Magnetoclinicity Instability

Nobumitsu Yokoi·Steven M. Tobias

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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.

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Nobumitsu Yokoi, Steven M. Tobias. 2022-05-28. Magnetoclinicity Instability. https://doi.org/10.1007/978-3-030-80716-0_37

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