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arXiv 0909.0137astro-ph.HE
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银河系信噪比$Σ$ - $D$关系的理论推导

Theoretical Derivation of $Σ$-$D$ Relation of Galactic SNRs

Jian-Wen Xu, Ya-Peng Hu, Hui-Rong Zhang

摘要:

考虑壳型超新星遗迹在绝热相和辐射相的不同物理过程,通过两套不同的公式分别推导出了壳型超新星遗迹在绝热相和辐射相的$Σ$ - $D$关系式。此外,还统计了大约57个银河壳型遗迹。并与前人的结果作了比较。结果表明,新的$Σ$ - $D$关系图中的所有最佳拟合线都比某些作者在早期导出的最佳拟合线有不同程度的平坦。我们的理论和统计结果在某种程度上是一致的。

英文摘要:

We derive the $Σ$-$D$ relation of Galactic supernova remnants of shell-type separately at adiabatic-phase and at radiative-phase through two sets of different formulas, considering the different physical processes of shell-type remnants at both stages. Also statistics on Galactic shell-type remnants about 57 was made. Then we do some comparison with other results obtained before. It shows that all the best fit lines in the $Σ$-$D$ relation plots newly are to some extent flatter than those derived by some authors at early time. Our theoretical and statistical outcomes are in somewhat good consistency.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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