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

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.

PASJ Letters in press, 6 pages, 2 figures

References in corpus (5)

• Stellar Orbits Around the Galactic Center Black Hole
• The Stellar Cusp Around the Supermassive Black Hole in the Galactic Center
• A Molecular Face-on View of the Galactic Centre Region
• New Nonthermal Filaments at the Galactic Center: Are They Tracing a Globally Ordered Magnetic Field?
• Modeling the Galactic Center Nonthermal Filaments as Magnetized Wake

Cited by in corpus (5)

• Suzaku observations of the diffuse x-ray emission across the fermi bubbles' edges
• Filament formation in wind-cloud interactions. II. Clouds with turbulent density, velocity, and magnetic fields
• Giant Lobes of Centaurus A Radio Galaxy Observed with the Suzaku X-ray Satellite
• Chandra large-scale mapping of the Galactic center: Probing high-energy structures around the central molecular zone
• Spontaneous Formation of Outflows Powered by Rotating Magnetized Accretion Flows in a Galactic Center