Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-07-04
Astrophys.J.649:L145-L148,2006
Astronomy and Astrophysics
Astrophysics
5 pages, 3 figures, accepted by ApJ
Scientific paper
10.1086/508422
We study experimentally the flow of a liquid metal confined between differentially rotating cylinders, in the presence of externally imposed axial and azimuthal magnetic fields. For increasingly large azimuthal fields a wave-like disturbance arises, traveling along the axis of the cylinders. The wavelengths and speeds of these structures, as well as the field strengths and rotation rates at which they arise, are broadly consistent with theoretical predictions of such a traveling wave magnetorotational instability.
Gerbeth Gunter
Gundrum Thomas
Hollerbach Rainer
Rosner Robert
Ruediger Guenther
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