Investigating the morphology of the supernova remnant G349.7+00.2 in the medium with a density gradient

Investigating the morphology of the supernova remnant G349.7+00.2 in the medium with a density gradient
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研究超新星遗迹 G349.7 00.2 在密度梯度介质中的形态

DOI:
10.1088/1674-4527/20/9/154
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发表时间:
2020-04
影响因子:
1.8
通讯作者:
Fang Jun
Fang Jun
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Yan Jingwen;Lu Chunyan;Wen Lu;Yu Huan;Fang Jun

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G349.7+00.2是一个年轻的银河系超新星遗迹(SNR),在射电和X射线中呈蘑菇状,它已经在从射电到高能射线的整个电磁频谱中被探测到。此外,根据在无线电和红外波段的观察,残留物正在与分子云相互作用。用三维流体力学(HD)模拟研究了边缘的形成原因和残余物的动力学演化。在超新星喷出物在密度梯度介质中演化的假设下,壳层由半径不同的两个半球组成,较小的半球位于相对致密的介质中。G349.7+00.2的残留物与检测到的残留物边缘是一致的,可以认为G349.7+00.2特殊的残留物与密度梯度的介质相互作用。
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 -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 is investigated using 3D hydrodynamical (HD) simulations. Under the assumption that the supernova ejecta is evolved in the mediumwith a density gradient, the shell is composed of two hemispheres with different radii, 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.
对具有密度不连续性的环境介质中超新星遗迹 SN 1006 的形态进行数值研究
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发表时间: 2019-11
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