论文标题
Supernova残留3C 397的IA型祖细胞的证据
Evidence of a Type Ia Progenitor for Supernova Remnant 3C 397
论文作者
论文摘要
辩论了年轻的超新星残留物（SNR）397（G41.1-0.3）的爆炸性。它的伸长形态和与分子云的邻近性暗示了核心折叠（CC）SN起源，但最近对重金属的X射线研究表明化学产量和与IA型SN型一致的线质体能量。在本文中，我们分析了用suzaku观察到的0.7-10 keV的完整X射线光谱，并比较了中间质量和重金属（MG至NI）的线质心能量，通量和元素丰度与IA和CC流体动态模型预测。根据结果，我们得出结论，3c 397可能是由高密度环境培养基中的IA型爆炸产生的，并且我们表明祖细胞是近乎Chandrasekhar质量的质量白矮人。
The explosive origin of the young supernova remnant (SNR) 3C 397 (G41.1-0.3) is debated. Its elongated morphology and proximity to a molecular cloud are suggestive of a core-collapse (CC) SN origin, yet recent X-ray studies of heavy metals show chemical yields and line centroid energies consistent with a Type Ia SN. In this paper, we analyze the full X-ray spectrum from 0.7-10 keV of 3C 397 observed with Suzaku and compare the line centroid energies, fluxes, and elemental abundances of intermediate-mass and heavy metals (Mg to Ni) to Type Ia and CC hydrodynamical model predictions. Based on the results, we conclude that 3C 397 likely arises from an energetic Type Ia explosion in a high-density ambient medium, and we show that the progenitor was a near Chandrasekhar mass white dwarf.
