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Magnetic shear-driven instability and turbulent mixing in magnetized protostellar disks - MaRDI portal

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Magnetic shear-driven instability and turbulent mixing in magnetized protostellar disks

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Publication:5458109

DOI10.1051/0004-6361:20077562zbMATH Open1137.85316arXiv0801.1960OpenAlexW2147394742WikidataQ58328389 ScholiaQ58328389MaRDI QIDQ5458109

Author name not available (Why is that?)

Publication date: 11 April 2008

Published in: (Search for Journal in Brave)

Abstract: Observations of protostellar disks indicate the presence of the magnetic field of thermal (or superthermal) strength. In such a strong magnetic field, many MHD instabilities responsible for turbulent transport of the angular momentum are suppressed. We consider the shear-driven instability that can occur in protostellar disks even if the field is superthermal. This instability is caused by the combined influence of shear and compressibility in a magnetized gas and can be an efficient mechanism to generate turbulence in disks. The typical growth time is of the order of several rotation periods.


Full work available at URL: https://arxiv.org/abs/0801.1960



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