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arxiv: 1207.6444 · v1 · pith:SK2O5JE6new · submitted 2012-07-27 · 🌌 astro-ph.HE · gr-qc

Three dimensional evolution of differentially rotating magnetized neutron stars

classification 🌌 astro-ph.HE gr-qc
keywords codedifferentiallyfluxmagnetizedneutronrotatingstarsaxisymmetric
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We construct a new three-dimensional general relativistic magnetohydrodynamics code, in which a fixed mesh refinement technique is implemented. To ensure the divergence-free condition as well as the magnetic flux conservation, we employ the method by Balsara (2001). Using this new code, we evolve differentially rotating magnetized neutron stars, and find that a magnetically driven outflow is launched from the star exhibiting a kink instability. The matter ejection rate and Poynting flux are still consistent with our previous finding (Shibata et al., 2011) obtained in axisymmetric simulations.

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