论文标题
重新审视行星星云NGC 7027中HEH $^+$的形成
Revisiting the Formation of HeH$^+$ in the Planetary Nebula NGC 7027
论文作者
论文摘要
从使用三种不同理论方法的四个独立计算，计算了通过He $^+$和H形成HEH $^+$的速率系数。在我们的新计算和二十年前获得的有关动力学温度介于$ \ sim $ 800和20,000 k之间获得的先前结果之间的良好协议。这一发现与文献中最新的主张不一致，表明已发表的价值有广泛的变化，并确定了我们对这一过程heh $^+$^+$ $^+$ $^+$的鲁棒性。讨论了当前结果对HEH $^+$首次检测的含义及其在行星星云NGC 7027中的建模丰度。
From four independent calculations using three different theoretical approaches, rate coefficients for the formation of HeH$^+$ via the radiative association of He$^+$ and H were computed. Good agreement is found between our new calculations and prior results obtained two decades ago for kinetic temperatures between $\sim$800 and 20,000 K. This finding is inconsistent with a recent claim in the literature of a wide variation in published values and establishes the robustness of our knowledge of this process for the formation of HeH$^+$. The implications of the current results to the first detection of HeH$^+$ and its modeled abundance in the planetary nebula NGC 7027 are discussed.
