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K.-I. Nishikawa (Rutgers Univ.), S. Koide (Toyama Univ.), K. Shibata (Kyoto Univ.), T. Kudoh (NAO, Japan), H. Sol (Obs. de Paris-Meudon), J. P. Hughes (Rutgers Univ.)
We have investigated the dynamics of an accretion disk around Schwarzschild black holes initially threaded by a uniform poloidal magnetic field in a non-rotating corona (either in a steady-state infalling state) around a non-rotating black hole using a 3-D GRMHD with the ``axisymmetry'' along the z-direction. Magnetic field is tightly twisted by the rotation of the disk, and plasmas in the shocked region of the disk are accelerated by J \times B force to form bipolar relativistic jets.
In order to investigate variabilities of generated relativistic jets and magnetic field structure inside jets, we have performed calculations using the 3-D GRMHD code with a full 3-dimensional system without the axisymmetry. We have investigated how the third dimension affects the global disk dynamics and jet generation. We will perform simulations with various incoming flows from an accompanying star.
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