Experimental evidence for magnetorotational instability in a helical magnetic field
Astrophysics
2007-05-23 v1 Fluid Dynamics
Abstract
A recent paper [R. Hollerbach and G. Rudiger, Phys. Rev. Lett. 95, 124501 (2005)] has shown that the threshold for the onset of the magnetorotational instability (MRI) in a Taylor-Couette flow is dramatically reduced if both axial and azimuthal magnetic fields are imposed. In agreement with this prediction, we present results of a Taylor-Couette experiment with the liquid metal alloy GaInSn, showing evidence for the existence of the MRI at Reynolds numbers of order 1000 and Hartmann numbers of order 10.
Keywords
Cite
@article{arxiv.astro-ph/0606473,
title = {Experimental evidence for magnetorotational instability in a helical magnetic field},
author = {Frank Stefani and Thomas Gundrum and Gunter Gerbeth and Günther Rüdiger and Manfred Schultz and Jacek Szklarski and Rainer Hollerbach},
journal= {arXiv preprint arXiv:astro-ph/0606473},
year = {2007}
}
Comments
4 pages, 4 figures