论文标题
在具有密度梯度的培养基中研究超新星残留G349.7+00.2的形态
Investigating the morphology of the supernova remnant G349.7+00.2 in the medium with a density gradient
论文作者
论文摘要
G349.7 + 00.2是一种年轻的银河超新星残留物（SNR），带有无线电和X射线的蘑菇形态，并且在从无线电到高能$γ$ rays的整个电磁频谱中都被检测到。此外，残留物正在基于无线电和红外带中的观察结果与分子云相互作用。使用3D流体动力学（HD）模拟研究了外围形成和残余动力演化的原因。在假设超新星弹射体在具有密度梯度的介质中进化，壳由两个半球组成，具有不同的半径，较小的半球在相对密集的培养基中。所得残留物的外围与检测到的外围是一致的，可以得出结论，G349.7+00.2的特殊外围可以随着残余物与介质与密度梯度相互作用而复制。
G349.7 + 00.2 is a young Galactic supernova remnant (SNR) with a mushroom morphology in radio and X-rays, and it has been detected across the entire electromagnetic spectrum from radio to high energy $γ$-rays. Moreover, the remnant is interacting with a molecular cloud based on the observations in the radio and infrared band. The reason for the formation of the periphery and the dynamical evolution of the remnant are investigated using 3D hydrodynamical (HD) simulations. Under the assumption that the supernova ejecta is evolved in the medium with a density gradient, the shell is composed of two hemispheres with different radiuses, and the smaller hemisphere is in relatively dense media. The resulting periphery of remnant is consistent with detected ones, and it can be concluded that the peculiar periphery of G349.7+00.2 can be reproduced as the remnants interacting with the medium with a density gradient.
