1.
Phys Rev Lett
; 84(13): 2865-8, 2000 Mar 27.
Article
in English
| MEDLINE
| ID: mdl-11018962
ABSTRACT
Continuous magnetohydrodynamic (MHD) spectra in tokamaks with toroidal rotation are studied. In the corotating frame, the linear perturbations experience Coriolis and centrifugal effects. The latter create Alfven frequency gaps on rational surfaces resonant with the perturbations. New global eigenmodes are located inside these gaps. These modes may be used for MHD spectroscopy. In contrast to the usual gaps and toroidal Alfven eigenmodes, the new flow-induced gaps and global modes are in the low frequency range so that they will have important implications for stability as well.
2.
Magnetohydrodynamic continua and stratification induced Alfvén eigenmodes in coronal magnetic loops.
Phys Rev Lett
; 76(4): 567-570, 1996 Jan 22.
Article
in English
| MEDLINE
| ID: mdl-10061492