论文标题
自吻合的谷物耗竭和丰度I：猎户座星云作为测试案例
Self-consistent grain depletions and abundances I: The Orion Nebula as a test case
论文作者
论文摘要
星际培养基（ISM）中的原子种从其气相过渡，主要是通过耗尽到灰尘。在这项研究中，我们检查了根据最新发表的模型改变尘埃耗竭程度时，猎户座H II区域的光电离世模型的光谱线比预测是否有任何变化。我们使用以前作品发表的方程式和参数，以简化多云中耗尽的丰度的计算。我们的目标是使多云的用户能够使用输入文件中的单个参数来改变耗竭水平。这使得可以更有效地探索对大量耗竭的预测。最后，我们讨论了以这种方式操纵耗尽程度时，猎户座星云模型获得的结果。我们发现，线比的强度会受到耗尽到尘土的显着影响。此外，我们发现调节灰尘丰度以及耗竭会影响H ii区域H $^+$层的结构和总温度。
Atomic species in the interstellar medium (ISM) transition out of their gas phase mainly by depletion onto dust. In this study, we examine if there is any change to the spectral line ratio predictions from a photoionization model of the Orion H II region when the degree of dust depletions is altered according to the most recently published model. We use equations and parameters published by previous works, in order to streamline the calculation of depleted abundances within CLOUDY. Our aim is for CLOUDY users to be able to vary the level of depletion using a single parameter in the input file. This makes it possible to explore predictions for a large range of depletions more efficiently. Finally, we discuss the results obtained for a model of the Orion Nebula when the degree of depletions are manipulated in this way. We found that the intensity of line ratios are significantly affected by depletions onto dust grains. Further, we found that adjusting dust abundances along with depletion affects the structure and the overall temperature of the H$^+$ layer across the H II region.
