【摘要】 我们根据通常的超新星遗迹的爆炸波模型,对已知年龄的超新星遗迹,导出了由X射线观测资料及年龄确定其基本物理参数的一组公式,用于SN185、SN1006和SN1054三个源,计算得出了三组有内在联系的参数值,并将所得出的距离与古代视亮度观测互相校核。我们将上述结果与现有的各种数据作了比较,分析了造成其间差别的可能原因,认为所得结果还是比较可信的。因此,将有助于选取参数值和缩小它们的不确定范围。强调了星际介质密度对射电性质可能有重要影响,这对于超新星遗迹物理状况的进一步理论研究可能会有帮助。更多还原

【Abstract】 According to the usual blast model of SNRs, we have deduced a set of correlated formulae for known-age SNRs. Using X-ray information and the ages of SNRs, the basic physical parameters of a SNR are determined by these formulae. Applying these formulae to the sources of SN185, SN1006 and SN1054, we have evaluated three sets of SNR’s parameters, in which the distances of the SNRs are seen to agree with the ancient. apparent brightness data. Comparing the above results with recent data and analysing the possible reasons for the differences between them, we find that these results are more reliable. The fomulae will be helpful for the determination of the SNR’s parameters. It is emphasized that the density of the interstaller medium has an important effect on the nature of radio emissions, and this will be helpful for the theoretical interpretation of the physical states of SNRs.更多还原