论文标题
薄层近似中的节能:I。超新星残留物的球形经典案例
Energy Conservation in the thin layer approximation: I. The spherical classic case for supernovae remnants
论文作者
论文摘要
薄层近似应用于超新星残留物的膨胀,假设所有扫掠质量都属于薄壳。因此,使用动量的保护发现了薄层近似的运动定律。相反,我们在薄层近似的框架中引入了能量的保存。要分析的第一种情况是具有恒定密度的星际培养基,第二种情况是相对于爆炸中心的7个剖面的剖面。分析结果和数值结果适用于4个超新星残留物:Tycho,Cas A,Cygnus Loop和SN 1006。在星际培养基的恒定密度的情况下,评估了由于运动定律辐射损失引起的反应。
The thin layer approximation applied to the expansion of a supernova remnant assumes that all the swept mass resides in a thin shell. The law of motion in the thin layer approximation is therefore found using the conservation of momentum. Here we instead introduce the conservation of energy in the framework of the thin layer approximation. The first case to be analysed is that of an interstellar medium with constant density and the second case is that of 7 profiles of decreasing density with respect to the centre of the explosion. The analytical and numerical results are applied to 4 supernova remnants: Tycho, Cas A, Cygnus loop, and SN 1006. The back reaction due to the radiative losses for the law of motion is evaluated in the case of constant density of the interstellar medium.