Dynamics of the twisted magnetic flux-tube in the astrophysical jets
Conference paper > Full Text
Authors: Ebru DEVLEN
Proceedings of VII Microquasar Workshop: Microquasars and Beyond — PoS(MQW7), , , International, Full Text, pp 074-074
DOI: 10.22323/1.062.0074
Summary
We investigate the local linear stability analysis of rotating jets under the thick flux-tube approximation.The magnetic field is chosen so as to have toroidal and poloidal components contributing to the internal twist of the flux-tube.We obtained the dispersion relation for structures of the binormal helices.We also did numerical solutions of the dispersion relation.In the smaller m modes, the stabilizing effect of the rigid rotation is remarkable, since rotation velocities of the higher than the Alfven speed fully stabilize the flow in many cases.However, it is clearly seen that the higher m modes are generally more stable.