来自“塌缩”的核合成产额
Nucleosynthetic Yields from "Collapsars"
摘要：
伽马射线暴的“超新星”引擎利用普通超新星的失败和黑洞的形成作为其能量来源。在这里，我们提出的第一个三维模拟的结果，一个大质量的恒星坍缩到一个黑洞，包括随后的吸积和爆炸。爆炸显着不同的轴对称的情况下获得的二维模拟，这对核合成产量的重要后果。我们比较的核合成产额的超新星。计算产量从三维爆炸需要新的策略后处理核合成，我们讨论NuGrid的三维产量计划。
英文摘要：
The "collapsar" engine for gamma-ray bursts invokes as its energy source the failure of a normal supernova and the formation of a black hole. Here we present the results of the first three-dimensional simulation of the collapse of a massive star down to a black hole, including the subsequent accretion and explosion. The explosion differs significantly from the axisymmetric scenario obtained in two-dimensional simulations; this has important consequences for the nucleosynthetic yields. We compare the nucleosynthetic yields to those of hypernovae. Calculating yields from three-dimensional explosions requires new strategies in post-process nucleosynthesis; we discuss NuGrid's plan for three-dimensional yields.
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