记忆的持久性，或SNR 0509-67.5的X射线光谱如何揭示其母Ia型超新星的亮度
The Persistence of Memory, or How the X-Ray Spectrum of SNR 0509-67.5 Reveals the Brightness of its Parent Type Ia Supernova
摘要：
我们研究的动力学和X射线光谱的年轻Ia型超新星遗迹0509-67.5的背景下，最近的结果从其光回波光谱学。我们的目标是利用钱德拉和XMM-牛顿对超新星遗迹的观测来估计超新星爆炸的动能，从而将0509-67.5的诞生事件置于由暗到亮的Ia型超新星序列中。我们的分析基础上的一维延迟爆轰爆炸模型的标准网格，连同流体动力学和X射线光谱计算的超新星遗迹的演变。从残余动力学和X射线光谱中的O、Si、S和Fe发射特性，我们得出结论，0509-67.5起源于大约400年前的一次明亮的高能Ia型爆炸，类似于SN 1991 T。我们最好的模型有一个动能的1.4 × 10 E51尔格和合成0.97 Msun的56镍。这些结果与光回波的年龄估计和光谱非常一致。因此，我们已经建立了Ia型超新星和超新星遗迹之间的第一个联系，基于对两个物体的详细定量分析。
英文摘要：
We examine the dynamics and X-ray spectrum of the young Type Ia supernova remnant 0509-67.5 in the context of the recent results obtained from the optical spectroscopy of its light echo. Our goal is to estimate the kinetic energy of the supernova explosion using Chandra and XMM-Newton observations of the supernova remnant, thus placing the birth event of 0509-67.5 in the sequence of dim to bright Type Ia supernovae. We base our analysis on a standard grid of one-dimensional delayed detonation explosion models, together with hydrodynamic and X-ray spectral calculations of the supernova remnant evolution. From the remnant dynamics and the properties of the O, Si, S, and Fe emission in its X-ray spectrum we conclude that 0509-67.5 was originated ~400 years ago by a bright, highly energetic Type Ia explosion similar to SN 1991T. Our best model has a kinetic energy of 1.4x10E51 erg and synthesizes 0.97 Msun of 56Ni. These results are in excellent agreement with the age estimate and spectroscopy from the light echo. We have thus established the first connection between a Type Ia supernova and its supernova remnant based on a detailed quantitative analysis of both objects.
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