Magnetic Reconnection Triggered by the Parker Instability in the Galaxy: Two-dimensional Numerical Magnetohydrodynamic Simulations and Application to the Origin of X-Ray Gas in the Galactic Halo

  title={Magnetic Reconnection Triggered by the Parker Instability in the Galaxy: Two-dimensional Numerical Magnetohydrodynamic Simulations and Application to the Origin of X-Ray Gas in the Galactic Halo},
  author={Syuniti Tanuma and Takaaki Yokoyama and Takahiro Kudoh and Kazunari Shibata},
  journal={The Astrophysical Journal},
  pages={215 - 229}
We propose the Galactic flare model for the origin of the X-ray gas in the Galactic halo. For this purpose, we examine the magnetic reconnection triggered by Parker instability (magnetic buoyancy instability), by performing the two-dimensional resistive numerical magnetohydrodynamic simulations. As a result of numerical simulations, the system evolves through the following phases. Parker instability occurs in the Galactic disk. In the nonlinear phase of Parker instability, the magnetic loop… 

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