Comment on: The ideal magnetohydrodynamic continuous spectrum in a cylindrical screw pinch: A question of completeness
In a recent investigation it was claimed that for a fixed two dimensional wave vector in the pressure surfaces, the continuous spectrum contains not only the Alfvén continuum and cusp continuum, but also the two magnetosonic continua. It was also claimed that the cusp continuum disappears in the homogeneous limit. This paper shows that there are no magnetosonic continua (the singularities that could give rise to these being removable), and that no continuum disappears in the homogeneous limit (the Alfvén continuum becoming an eigenvalue of infinite degeneracy, and the cusp continuum an accumulation point of eigenvalues).
Bibliographic Reference: Report: IPP 6/348 EN (1998) 4pp.
Availability: Available from the Max-Planck-Institut für Plasmaphysik, 85748 Garching bei München (DE)
Record Number: 199810999 / Last updated on: 1998-09-15
Original language: en
Available languages: en