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Particle acceleration by relativistic expansion of magnetic arcades

Published online by Cambridge University Press:  01 August 2006

Hiroyuki Takahashi ,
Eiji Asano  and
Ryoji Matsumoto
Hiroyuki Takahashi
Affiliation:
Graduate School of Science and Technology, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
Eiji Asano
Affiliation:
Graduate School of Science and Technology, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
Ryoji Matsumoto
Affiliation:
Department of Physics, Faculty of Science, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan email: takahasi@astro.s.chiba-u.ac.jp, asano@astro.s.chiba-u.ac.jp, matumoto@astro.s.chiba-u.ac.jp
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Abstract

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We carried out relativistic force free simulations and Particle In Cell (PIC) simulations of twist injection into the magnetic arcades emerging on the surface of a magnetar. As the magnetic energy is accumulated in the arcades, they expand self-similarly. In the arcades, a current sheet is formed and magnetic reconnection takes place. We also carried out 2-dimensional PIC simulations for the study of particle acceleration through magnetic reconnection. As a result, the energy spectrum of particles can be fitted by a power-law.

Keywords

acceleration of particlesmagnetic fieldplasmasflareneutron star
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Highlights of Astronomy 14: Highlights of Astronomy , August 2006 , pp. 102
Copyright
Copyright © International Astronomical Union 2007

References

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