Astrodust+PAH Opacities

Opacities per unit dust mass for the astrodust+PAH model. Please cite Hensley & Draine 2023 when using these data. Provided files are: 1. astrodust+PAH_opacities.dat: absorption, scattering, and extinction opacities as a function of wavelength for astrodust and PAHs assuming the size distribution in Hensley & Draine 2023. Units are cm2/H and refer to dust cross sections only. The tabulated values can be converted to opacities per unit dust mass using the provided dust to gas mass ratios in the file header. The total extinction opacity and albedo are also provided. 2. astrodust+PAH_mean_opacities.dat: The Planck (\"P\") and Rosseland (\"R\") mean opacities of the astrodust+PAH model computed for absorption only (\"abs\") and extinction (\"ext\") as a function of temperature. Units are cm2/g and refer to cross section per unit dust mass. Please cite Hensley & Draine 2022 if using these data. Please also consider citing the paper where the astrodust dielectric function was derived (Draine & Hensley 2021) and the paper deriving the observational constraints used to calibrate the model (Hensley & Draine 2021).本数据集为astrodust+PAH模型的单位尘埃质量不透明度（opacity）。使用本数据集时，请引用Hensley与Draine 2023年发表的相关文献。 本次提供的数据集文件包括： 1. astrodust+PAH_opacities.dat：该文件包含基于Hensley & Draine 2023中尺寸分布假设的天体尘埃与多环芳烃（Polycyclic Aromatic Hydrocarbons, PAH）的吸收、散射及消光不透明度随波长的变化关系。其单位为cm²/H，仅对应尘埃截面面积。表格中的数值可通过文件头中给出的尘埃-气体质量比转换为单位尘埃质量不透明度。文件同时提供了总消光不透明度与反照率（albedo）。 2. astrodust+PAH_mean_opacities.dat：该文件包含astrodust+PAH模型的普朗克平均不透明度（Planck mean opacities，标记为"P"）与罗斯兰德平均不透明度（Rosseland mean opacities，标记为"R"），分别针对仅吸收（标记为"abs"）与消光（标记为"ext"）场景，随温度的变化关系。其单位为cm²/g，对应单位尘埃质量的截面面积。 若使用该第二组文件的数据，请引用Hensley与Draine 2022年发表的文献。此外，若需引用本模型所采用的天体尘埃介电函数（dielectric function）推导文献（Draine & Hensley 2021），以及用于校准模型的观测约束推导文献（Hensley & Draine 2021），请一并予以标注。