论文标题
小麦哲伦云中超新星残留种群的物理特性
Physical Properties of the Supernova Remnant Population in the Small Magellanic Cloud
论文作者
论文摘要
超新星残留物的X射线排放是其令人震惊的等离子体状态的有力诊断。温度和发射度量与爆炸能量，残余年龄和周围介质的密度有关。在这里，我们介绍了对小麦芽云的残留人群的研究结果。 X射线观察的进展导致小麦芽岩陷入了20个残留物的样本，并进行了测量的温度和排放措施。我们将球形对称的超新星残留进化模型应用于这组残留物，估计年龄，爆炸能量和中间介质密度。年龄的分布产生$ \ sim $ 1/1200的残余出生率。能量和密度非常适合对数正态分布，平均值为1.6 $ \ times10^{51} $ erg和0.14 cm $^{ - 3} $，分别为1.87的能量百分比，分别为1.87的能量和3.06的密度。
The X-ray emission from a supernova remnant is a powerful diagnostic of the state of its shocked plasma. The temperature and the emission measure are related to the energy of the explosion, the age of the remnant, and the density of the surrounding medium. Here we present the results of a study of the remnant population of the Small Magellanic Cloud. Progress in X-ray observations of remnants has resulted in a sample of 20 remnants in the Small Magellanic Clound with measured temperatures and emission measures. We apply spherically symmetric supernova remnant evolution models to this set of remnants, to estimate ages, explosion energies, and circumstellar medium densities. The distribution of ages yields a remnant birthrate of $\sim$1/1200 yr. The energies and densities are well fit with log-normal distributions, with means of 1.6$\times10^{51}$ erg and 0.14 cm$^{-3}$, and 1$σ$ dispersions of a factor of 1.87 in energy and 3.06 in density, respectively.
