Erratum: Three-dimensional relativistic magnetohydrodynamic simulations of current-driven instability. III. Rotating relativistic jets (Astrophysical Journal (2012) 757 (160))

Yosuke Mizuno, Yuri Lyubarsky, Ken Ichi Nishikawa, Philip E. Hardee

Research output: Contribution to journalComment/debate

Abstract

We have investigated the influence of jet rotation and differential motion on the linear and nonlinear development
of the current-driven (CD) kink instability of force-free helical magnetic equilibria via three-dimensional
relativistic magnetohydrodynamic simulations. In this study, we follow the temporal development within a periodic
computational box. Displacement of the initial helical magnetic field leads to the growth of the CD kink instability.
We find that, in accordance with the linear stability theory, the development of the instability depends on the lateral
distribution of the poloidal magnetic field. If the poloidal field significantly decreases outward from the axis, then the initial small perturbations grow strongly, and if multiple wavelengths are excited, then nonlinear interaction eventually disrupts the initial cylindrical configuration.When the profile of the poloidal field is shallow, the instability develops slowly and eventually saturates. We briefly discuss implications of our findings for Poynting-dominated
jets.
Original languageEnglish
Article number160
JournalAstrophysical Journal
Volume765
Issue number2
DOIs
StatePublished - 10 Mar 2013

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