搅动着一个嵌入星团的移动气体丝
Stirring up an embedded star cluster with a moving gas filament
摘要：
我们进行模拟，以测试一个年轻的星团（即“弹弓”模型）上的移动气体灯丝的影响。我们将猎户座星云的类猎户座星团模型化为Plummer球，将积分形灯丝气体模型化为圆柱势。我们观察到，在一个静态的灯丝，一个最初的球形集群自然演变成一个细长的恒星分布。对于正弦运动的细丝，我们观察到不同的残余物，并将其分为4类。%：3个不同的物体和一个过渡物体。“健康”的星团，几乎所有的恒星都停留在暗条和星团内部;“毁灭”的星团则相反，暗条中或靠近星团密度中心的地方几乎没有粒子;“弹射”的星团，大部分恒星靠近恒星密度中心，但几乎没有一颗恒星在暗条中;以及“过渡”团簇，其中从团簇和从细丝喷射出的粒子数量大致相同。一个类似猎户座星云的星团可能会留在灯丝内部或被弹出，但它不会被摧毁。
英文摘要：
We perform simulations to test the effects of a moving gas filament on a young star cluster (i.e. the "Slingshot" Model). We model Orion Nebula Cluster-like clusters as Plummer spheres and the Integral Shaped Filament gas as a cylindrical potential. We observe that in a static filament, an initially spherical cluster evolves naturally into an elongated distribution of stars. For sinusoidal moving filaments, we observe different remnants, and classify them into 4 categories.%: 3 different objects and one transition object. "Healthy" clusters, where almost all the stars stay inside the filament and the cluster; "destroyed" clusters are the opposite case, with almost no particles in the filament or near the centre of density of the clusters; "ejected" clusters, where a large fraction of stars are close to the centre of density of the stars , but almost none of them in the filament; and "transition" clusters, where roughly the same number of particles is ejected from the cluster and from the filament. An {Orion Nebula Cluster-like} cluster might stay inside the filament or be ejected, but it will not be destroyed.
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