论文标题
phangs-jwst首先结果：恒星簇对附近星系中的PAH的影响
PHANGS-JWST First Results: The Influence of Stellar Clusters on PAHs in Nearby Galaxies
论文作者
论文摘要
我们介绍了尘埃连续和多环芳烃（PAH）发射的理论预测与三个附近星系中的新JWST观测值的比较：NGC 628，NGC 1365和NGC 7496。我们的分析集中于1063 Compact Compact Stellar Clusters和2654 Stellars Calaxiiations的总体分析，以前由三个同事进行了介绍。我们发现，观察到的以PAH为中心的红外颜色的分布和趋势通常与理论期望一致，并且大部分观测值与较大的，电离的PAH模型更加一致。这些JWST数据在一个新时代探测了星际尘埃，并研究了恒星簇和关联附近的强烈辐射场如何在塑造PAH的物理特性中发挥作用。
We present a comparison of theoretical predictions of dust continuum and polycyclic aromatic hydrocarbon (PAH) emission with new JWST observations in three nearby galaxies: NGC 628, NGC 1365, and NGC 7496. Our analysis focuses on a total of 1063 compact stellar clusters and 2654 stellar associations previously characterized by HST in the three galaxies. We find that the distributions and trends in the observed PAH-focused infrared colors generally agree with theoretical expectations, and that the bulk of the observations is more aligned with models of larger, ionized PAHs. These JWST data usher in a new era of probing interstellar dust and studying how the intense radiation fields near stellar clusters and associations play a role in shaping the physical properties of PAHs.
