publication . Article . Preprint . 2007

Kelvin–Helmholtz instability in a weakly ionized layer

Shadmehri, Mohsen; Downes, Turlough P.;
Open Access
  • Published: 06 Jul 2007 Journal: Astrophysics and Space Science, volume 312, pages 79-84 (issn: 0004-640X, eissn: 1572-946X, Copyright policy)
  • Publisher: Springer Science and Business Media LLC
Abstract
We study the linear theory of Kelvin-Helmholtz instability in a layer of ions and neutrals with finite thickness. In the short wavelength limit the thickness of the layer has a negligible effect on the growing modes. However, perturbations with wavelength comparable to layer's thickness are significantly affected by the thickness of the layer. We show that the thickness of the layer has a stabilizing effect on the two dominant growing modes. Transition between the modes not only depends on the magnetic strength, but also on the thickness of the layer.
Subjects
free text keywords: Space and Planetary Science, Astronomy and Astrophysics, Wavelength, Classical mechanics, Physics, Finite thickness, Linear system, Perturbation (astronomy), Instability, Condensed matter physics, Astrophysics, Helmholtz instability, Ionization, Ion
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