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Wakana Iwakami Naofumi Ohnishi Kei Kotake Shoichi Yamada Keisuke Sawada 《Astrophysics and Space Science》2009,322(1-4):43-47
The study of standing accretion shock instability (SASI) in core-collapse supernova cores has been done with three-dimensional (3D) computer simulations. Rotations with various perturbations were introduced from outer boundary of an initial steady accreting flow. We found that one or two armed spiral accreting flow onto the proto-neutron star (PNS) is formed inside the shock wave depending on perturbations. The linear growth of spiral modes are clearly diagnosed by the mode analysis of the shock surface, and the lower m modes grow quickly in the linear regime. 相似文献
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