论文标题
超新星和螺旋臂分子云中的光离子反馈
Supernovae and photoionizing feedback in spiral arm molecular clouds
论文作者
论文摘要
我们探讨了超新星与恒星形成区域中祖细胞的电离辐射之间的相互作用。这些出色的反馈过程的相对贡献尚不清楚，尤其是在比单星形成云的尺度上。我们主要关注它们如何影响星际培养基。我们从以前的工作中重新塑造了500个PC^2区域，其中包括光电离并添加超新星。在10个MYR的过程中，该地区发生了500多个超新星。在没有较早的光电离世的情况下，超新星残留物很快就会很快冷却，但是在存在光电离时会形成更大，更大的球体热气泡。总体而言，光离子化对气体形态和恒星形成部位的影响明显更大。但是，在查看它们对速度分散的影响时，这两个过程是可比的。合并后，两个反馈过程将速度分散剂的总和超过其部分的总和，尤其是在5 pc以上的尺度上。
We explore the interplay between supernovae and the ionizing radiation of their progenitors in star forming regions. The relative contributions of these stellar feedback processes are not well understood, particularly on scales greater than a single star forming cloud. We focus predominantly on how they affect the interstellar medium. We re-simulate a 500 pc^2 region from previous work that included photoionization and add supernovae. Over the course of 10 Myr more than 500 supernovae occur in the region. The supernovae remnants cool very quickly in the absence of earlier photoionization, but form much larger and more spherical hot bubbles when photoionization is present. Overall, the photoionization has a significantly greater effect on gas morphology and the sites of star formation. However, the two processes are comparable when looking at their effect on velocity dispersion. When combined, the two feedback processes increase the velocity dispersions by more than the sum of their parts, particularly on scales above 5 pc.
