Numerical study of relativistic magnetic reconnections

Hiroyuki R. Takahashi, Jin Matsumoto, Youhei Masada, Takahiro Kudoh

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

We investigate the dynamics of the relativistic Sweet-Parker reconnection by means of Relativistic Resistive Magnetohydrodynamic (RRMHD) simulation. It is found that the magnetic energy is preferentially converted to the thermal energy in the diffusion region, resulting the formation of the relativistically hot outflows. The outflow speed is a little smaller than that expected from the non-relativistic theory which predicts the outflow speed is of order the Alfvén speed. The slow outflow speed is the consequence of the increase in the plasma inertia due to the relativistic effects. Since the observed Lorentz factor of the outflow and the reconnection rate are both small, our numerical model suggests that the relativistic Sweet-Parker reconnection is a slow process for the magnetic energy conversion as well as the non-relativistic one.

本文言語English
ホスト出版物のタイトルDeciphering the Ancient Universe with Gamma-Ray Bursts
ページ427-429
ページ数3
DOI
出版ステータスPublished - 2010
外部発表はい
イベントInternational Symposium "Deciphering the Ancient Universe with Gamma-Ray Bursts" - Kyoto, Japan
継続期間: 2010 4月 192010 4月 23

出版物シリーズ

名前AIP Conference Proceedings
1279
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

OtherInternational Symposium "Deciphering the Ancient Universe with Gamma-Ray Bursts"
国/地域Japan
CityKyoto
Period10/4/1910/4/23

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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