The exciting lives of giant molecular clouds
The exciting lives of giant molecular clouds
复制标题
巨型分子云令人兴奋的生活
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
J. Pringle
中科院分区：
文献类型：
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作者：
C. Dobbs;J. Pringle
我们在银盘模拟中详细研究了巨型分子云(GMC)的演化。我们跟踪单个GMC(在我们的模拟中通过总的列密度标准定义)，包括它们的恒星形成水平，从它们的形成到扩散。我们发现，转基因生物的演化是高度复杂的，不能将其视为孤立的物体。GMC通常由较小的云和周围的星际介质(ISM)组合而成，类似地通过分裂成许多较小的云和周围的ISM而分散。然而，一些云的出现是由于更大质量的GMC的破坏，而不是来自较小的云的集合。同样，在某些情况下，云层会聚集在更大的云层上，而不是消散。由于很难确定一种特定转基因作物的前身或继任者，因此确定转基因作物的历史和寿命是非常不容易的。使用与云的持续演化相关的定义，我们通常获得寿命
We present a detailed study of the evolution of giant molecular clouds (GMCs) in a galactic disc simulation. We follow individual GMCs (defined in our simulations by a total column density criterion), including their level of star formation, from their formation to dispersal. We find the evolution of GMCs is highly complex, and GMCs cannot be considered as isolated objects. GMCs often form from a combination of smaller clouds and ambient interstellar medium (ISM), and similarly disperse by splitting into a number of smaller clouds and ambient ISM. However some clouds emerge as the result of the disruption of a more massive GMC, rather than from the assembly of smaller clouds. Likewise in some cases, clouds accrete on to more massive clouds rather than disperse. Because of the difficulty of determining a precursor or successor of a given GMC, determining GMC histories and lifetimes is highly non-trivial. Using a definition relating to the continuous evolution of a cloud, we obtain lifetimes typically
剪切力在银河系恒星形成中的较小作用：来自银河系环调查的见解
DOI：
10.1088/0004-637x/758/2/125
发表时间：
2012
期刊：
The Astrophysical Journal
影响因子：
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作者：
Dib S
通讯作者：
Dib S