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Magnetic-Reconnection and Current-Sheet Model for the Radio Arc and Threads in the Galactic Center

Yoshiaki Sofue·Hiromitsu Kigure·Kazunari Shibata
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Abstract

We propose a new mechanism to explain the radio Arc and threads in the Galactic Center by current sheets produced by local magnetic shears due to interaction of a moving cloud and the vertical field based on three-dimensional magneto-hydrodynamical simulations. Magnetic reconnetion and acceleration of cosmic-ray electrons in the current sheet will result in high contrast of radio emissivity inside and outside the Arc and threads.

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Yoshiaki Sofue, Hiromitsu Kigure, Kazunari Shibata. 2005-07-25. Magnetic-Reconnection and Current-Sheet Model for the Radio Arc and Threads in the Galactic Center. https://doi.org/10.1093/pasj%2F57.5.l39

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