论文标题
IAX型超新星类型的近乎chandrasekhar-mas白色矮人模型中的爆炸性核合成：依赖模型参数
Explosive Nucleosynthesis in Near-Chandrasekhar-mass White Dwarf Models for Type Iax Supernovae: Dependence on Model Parameters
论文作者
论文摘要
最近观察到的IA型超新星（SNE IA）的多样性促使我们在广泛的参数范围内进行了SNE IA的理论建模。特别是，IAX型超新星（SNE IAX）的起源是晦涩的。在我们较早的SN IA模型参数依赖性工作之后，我们在本研究中关注IAX。对于SNE IAX的模型，我们采用了近chandrasekhar质量C+O White Dwarfs（WDS）的当前领先模型。我们进行了二维流体力学模拟，对幻影波的传播进行了二维，这在后面留下了小的WD残留物和射出核合成材料。我们展示了爆炸特性（例如核合成和爆炸能量）如何取决于模型参数，例如中央密度和WDS的组成（包括混合WDS），以及湍流的火焰处方和初始火焰几何形状。我们在模型中提取相关的可观察物，并与最近发现的具有异常表面丰度模式的低质量WD和某些SN残留物的丰度模式进行比较。我们为恒星考古学和银河化学演化的应用提供了核合成表产生表。我们的结果与文献中的代表性模型进行了比较。
The recently observed diversity of Type Ia supernovae (SNe Ia) has motivated us to conduct the theoretical modeling of SNe Ia for a wide parameter range. In particular, the origin of Type Iax supernovae (SNe Iax) has been obscure. Following our earlier work on the parameter dependence of SN Ia models, we focus on SNe Iax in the present study. For a model of SNe Iax, we adopt the currently leading model of pure turbulent deflagration (PTD) of near-Chandrasekhar mass C+O white dwarfs (WDs). We carry out 2-dimensional hydrodynamical simulations of the propagation of deflagration wave, which leaves a small WD remnant behind and eject nucleosynthesis materials. We show how the explosion properties, such as nucleosynthesis and explosion energy, depend on the model parameters such as central densities and compositions of the WDs (including the hybrid WDs), and turbulent flame prescription and initial flame geometry. We extract the associated observables in our models, and compare with the recently discovered low-mass WDs with unusual surface abundance patterns and the abundance patterns of some SN remnants. We provide the nucleosynthesis yield tables for applications to stellar archaeology and galactic chemical evolution. Our results are compared with the representative models in the literature.
