Three-dimensional evolution of differentially rotating magnetized neutron stars

被引：58
|
作者：
Kiuchi, Kenta [1 ]
Kyutoku, Koutarou [1 ,2 ]
Shibata, Masaru [1 ]
机构：
[1] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan
[2] KEK, Ctr Theory, Inst Particles & Nucl Studies, Tsukuba, Ibaraki 3050801, Japan
来源：
PHYSICAL REVIEW D | 2012年 / 86卷 / 06期
关键词：
ADAPTIVE MESH REFINEMENT; GRAVITATIONAL-WAVES; FIELDS; SIMULATIONS; TRANSPORT; MERGERS; SCHEME; FLOWS;
D O I：
10.1103/PhysRevD.86.064008
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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 [J. Comp. Physiol. 174, 614 (2001); J. Comp. Phys. 228, 5040 (2009)]. 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 [M. Shibata, Y. Suwa, K. Kiuchi, and K. Ioka, Astrophys. J. 734, L36 (2011)] obtained in axisymmetric simulations.
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页数：18
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