论文标题
$ 11.8 \，m_ \ odot $ supernova的核合成具有内部喷射的3D模拟：对早期太阳系中短寿命放射性核素的总产率和影响
Nucleosynthesis of an $11.8\,M_\odot$ Supernova with 3D Simulation of the Inner Ejecta: Overall Yields and Implications for Short-Lived Radionuclides in the Early Solar System
论文作者
论文摘要
基于具有初始太阳能组成的$ 11.8 \，m_ \ odot $祖细胞模型的3D超新星模拟，我们使用覆盖最内在的$ 0.1 \，m_ \ odot $的示踪剂研究了核合成。这些喷射大多是质子丰富的，并且贡献了大量$^{45} $ sc和$^{64} $ Zn。较重的同位素的产生对电子分数敏感，因此从原始中微子恒星产生了中微子的发射。由于模拟中使用的近似中微子转运，这些同位素的产量相当不确定。为了获得整个超新星的总产率，我们将示踪剂的结果与合适1D模型的外层的结果结合在一起。使用短寿命放射性核素（SLR）的产量，我们探讨了$ 11.8 \，m_ \ odot $ supernova可能触发了太阳系的形成，并提供了一些在陨石中测量的SLR。特别是，我们讨论了两个新方案，这些方案至少可以说明$^{41} $ ca，$^{53} $ MN和$^{60} $ fe，而不会超过其他SLR上的数据。
Based on a 3D supernova simulation of an $11.8\,M_\odot$ progenitor model with initial solar composition, we study the nucleosynthesis using tracers covering the innermost $0.1\,M_\odot$ of the ejecta. These ejecta are mostly proton-rich and contribute significant amounts of $^{45}$Sc and $^{64}$Zn. The production of heavier isotopes is sensitive to the electron fraction and hence the neutrino emission from the proto-neutron star. The yields of these isotopes are rather uncertain due to the approximate neutrino transport used in the simulation. In order to obtain the total yields for the whole supernova, we combine the results from the tracers with those for the outer layers from a suitable 1D model. Using the yields of short-lived radionuclides (SLRs), we explore the possibility that an $11.8\,M_\odot$ supernova might have triggered the formation of the solar system and provided some of the SLRs measured in meteorites. In particular, we discuss two new scenarios that can account for at least the data on $^{41}$Ca, $^{53}$Mn, and $^{60}$Fe without exceeding those on the other SLRs.
