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Inviscid helical magnetorotational instability in cylindrical Taylor-Couette flow
Physical Review E
This paper presents the analysis of axisymmetric helical magnetorotational instability (HMRI) in the inviscid limit, which is relevant for astrophysical conditions. The inductionless approximation defined by zero magnetic Prandtl number is adopted to distinguish the HMRI from the standard MRI in the cylindrical Taylor-Couette flow subject to a helical magnetic field. Using a Chebyshev collocation method convective and absolute instability thresholds are computed in terms of the Elsasser numberdoi:10.1103/physreve.84.066314 pmid:22304197 fatcat:sebtrmrvxbe4rb7dvgw4zas444