论文标题
如何创建东方：超新星在哪里爆炸？
How to create Sgr A East: Where did the supernova explode?
论文作者
论文摘要
SGR A East是最接近银河系中心的超新星残留物。据估计，它的年龄很小，大约1-2 kyr或大约10 kyr，其确切起源仍不清楚。我们渴望创建一个简单的超新星爆炸模型，该模型重现了SGR A东方的形状，大小和位置。使用简化的流体动力代码，我们模拟了银河中心周围介质中超新星残留物的演变。后者由附近的巨大分子云组成，该云通过该云组成，该云通过该云形成，而SGR A东部相互作用和来自核星团的风。我们首选的SGR A East残留模型与大约10公里的年龄兼容。我们还为老年时代找到合适的解决方案，但没有针对5公里以下的年龄段的年龄。我们的模拟预测，超新星在距银河平面下方的银河中心约3.5 pc的距离上爆炸，距离中心略微向东，后面有3个PC。
Sgr A East is the supernova remnant closest to the centre of the Milky Way. Its age has been estimated to be either very young, around 1-2 kyr, or about 10 kyr, and its exact origin remains unclear. We aspire to create a simple model of a supernova explosion that reproduces the shape, size, and location of Sgr A East. Using a simplified hydrodynamical code, we simulated the evolution of a supernova remnant in the medium around the Galactic centre. The latter consists of a nearby massive molecular cloud with which Sgr A East is known to be interacting and a wind from the nuclear star cluster. Our preferred models of the Sgr A East remnant are compatible with an age of around 10 kyr. We also find suitable solutions for older ages, but not for ages younger than 5 kyr. Our simulations predict that the supernova exploded at a distance of about 3.5 pc from the Galactic centre, below the Galactic plane, slightly eastwards from the centre and 3 pc behind it.
