Current-driven kink instability in magnetically dominated rotating relativistic jet

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

Research output: Contribution to journalConference articlepeer-review


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 threedimensional 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. In rotating relativistic jet case, developed helical kink structure propagates along jet axis with continuous growth of kink amplitude. The growth rate of CD kink instability does not depend on the jet rotation. The coupling of multiple unstable wavelengths is crucial to determining whether the jet is eventually disrupted in nonlinear stage. The strongly deformed magnetic field via CD kink instability may trigger of magnetic reconnection in the jet.

Original languageEnglish
Article number02004
JournalEPJ Web of Conferences
StatePublished - 1 Dec 2013
EventInternational Symposium on the Innermost Regions of Relativistic Jets and Their Magnetic Fields - Granada, Spain
Duration: 10 Jun 201314 Jun 2013

ASJC Scopus subject areas

  • General Physics and Astronomy


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