论文标题

薄层近似中的能量保护:ii。超新星残留物的不对称经典案例

Energy Conservation in the thin layer approximation: II. The asymmetric classic case for supernovae remnants

论文作者

Zaninetti, Lorenzo

论文摘要

在这里,我们将薄层近似框架中的能量保守性扩展到不对称的情况。分析了四种类型的星际介质,其中密度遵循反向平方剖面,功率法曲线,指数曲线和环形轮廓。在逆平方剖面的情况下,得出了半径作为时间和球形坐标的极角的分析解。分析结果和数值结果应用于两个超新星残留物:SN 1987a和SN 1006。在周围介质的反平方剖面的情况下,评估了由于辐射损失引起的反应。提出了两个用于图像形成的模型,这些模型解释了SN 1987a中可见的三个环和SN 1006的喷射功能。

Here we extend the conservation of energy in the framework of the thin layer approximation to the asymmetrical case. Four types of interstellar medium are analysed, in which the density follows an inverse square profile, a power law profile, an exponential profile and a toroidal profile. An analytical solution for the radius as a function of time and the polar angle in spherical coordinates is derived in the case of the inverse square profile. The analytical and numerical results are applied to two supernova remnants: SN 1987A and SN 1006. The back reaction due to the radiative losses is evaluated in the case of the inverse square profile for the surrounding medium. Two models for the image formation are presented, which explain the triple ring visible in SN 1987A and the jet feature of SN 1006.

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