Filamentary jets as a cosmic-ray "Zevatron"

被引：19

作者：

Honda, M ^{[1
]}

Honda, YS

机构：

[1] Inst Global Sci, Plasma Astrophys Lab, Mie 5195203, Japan

[2] Kinki Univ, Tech Coll, Dept Elect & Informat Engn, Mie 5194395, Japan

来源：

ASTROPHYSICAL JOURNAL | 2004年 / 617卷 / 01期

关键词：

acceleration of particles; galaxies : individual (M87); galaxies : jets; magnetic fields; methods : analytical; shock waves;

D O I：

10.1086/427067

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Strong, anisotropic turbulence reflecting magnetized filaments is considered, to model the diffusive acceleration of particles by shock waves in active galactic nucleus jets. We address that at knot A of the nearby M87 jet, the shock involving the filamentary turbulence can accelerate an iron nucleus to zetta-eV (ZeV; 10(21) eV) ranges. A smaller value of the particle diffusion coefficient is found to be essential to achieve a ZeV cosmic-ray accelerator, a "Zevatron."

引用

页码：L37 / L40

页数：4

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