论文标题
分子氢和致密云化学的宇宙射线解离
Cosmic ray dissociation of molecular hydrogen and dense cloud chemistry
论文作者
论文摘要
通过宇宙射线或X射线电离产生的二次电子将分子氢的解离在分子云最密集部分的化学中起着至关重要的作用。在这里，我们研究了次级电子对此过程的平均动能的影响。我们使用一系列二级电子能和横截面的预测与UMIST数据库中的值进行比较。我们发现预测的色谱柱密度变化了近一个DEX。
Dissociation of molecular hydrogen by secondary electrons produced by cosmic ray or X-ray ionization plays a crucial role in the chemistry of the densest part of molecular clouds. Here we study the effect of the mean kinetic energy of secondary electrons on this process. We compare predictions using a range of secondary electron energies and predictions of the cross-sections with the values in the UMIST database. We find that the predicted column densities change by nearly one dex.
