Magnetic inhibition of the recollimation instability in relativistic jets

Jin Matsumoto, Serguei S. Komissarov, Konstantinos N. Gourgouliatos

研究成果: Article査読

6 被引用数 (Scopus)

抄録

In this paper, we describe the results of three-dimensional relativistic magnetohydrodynamic simulations aimed at probing the role of regular magnetic field on the development of the instability that accompanies recollimation of relativistic jets. In particular, we studied the recollimation driven by the reconfinement of jets from active galactic nuclei (AGN) by the thermal pressure of galactic coronas. We find that a relatively weak azimuthal magnetic field can completely suppress the recollimation instability in such jets, with the critical magnetization parameter σcr < 0.01. We argue that the recollimation instability is a variant of the centrifugal instability (CFI) and show that our results are consistent with the predictions based on the study of magnetic CFI in rotating fluids. The results are discussed in the context of AGN jets in general and the nature of the Fanaroff-Riley morphological division of extragalactic radio sources in particular.

本文言語English
ページ(範囲)4918-4929
ページ数12
ジャーナルMonthly Notices of the Royal Astronomical Society
503
4
DOI
出版ステータスPublished - 2021 5月 1
外部発表はい

ASJC Scopus subject areas

  • 天文学と天体物理学
  • 宇宙惑星科学

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