AI 中文总结
该研究开发了CosmicPAH-IRDB网页应用及配套工具，用于量化激发过程对PAH光谱的影响，助力从JWST观测的AIBs中解码天体环境信息。
AI 中文摘要
詹姆斯·韦伯空间望远镜（JWST）红外观测的进展催生了新工具，以挖掘与芳香红外带（AIBs）相关的信息，目前在遥远星系和行星系统胚胎中均已观测到该带。AIBs包含其载体以及激发条件的信息，若能解码其光谱信息，将成为探测所处环境化学与物理条件的有力工具。尽管理论红外光谱的大型数据集已逐渐可用，但相关研究主要聚焦于化学多样性对AIBs的贡献，而激发过程对谱带轮廓的影响仍限制着研究结果。AIBs的载体被认为是多环芳烃（PAHs），这类高温分子会影响其光谱特性。本文报告了我们的方法：通过收集实验和理论红外光谱，研究谱带位置与宽度随温度的变化，以经验方式量化这些影响。我们介绍了相关方法，包括开发CosmicPAH-IRDB网页应用程序和光谱数据库，以及配套的cosmicPAHmfit多组分光谱拟合工具。我们的理念强调开放共享、用户友好访问和机器可读性，该网页应用程序、工具及其更新可通过Cosmic PAH门户（https://www.cosmicpah.org）访问。
英文摘要
Advances in infrared observations with the James Webb Space Telescope (JWST) call for new tools to exploit the information associated with the Aromatic Infrared Bands (AIBs), now observed in both distant galaxies and the embryos of planetary systems. The AIBs contain information about their carriers as well as the excitation conditions, making them powerful probes of the chemical and physical conditions of their environments - if their spectral information can be decoded. While large datasets of theoretical infrared spectra are becoming available, efforts have primarily focused on the contribution of chemical diversity to the AIBs. However, the results remain limited by the impact of the excitation process on the band profiles. The AIB carriers, thought to be polycyclic aromatic hydrocarbons (PAHs), are hot molecules, which affects their spectral characteristics. We report here our approach to quantify these effects empirically by collecting IR spectra - both experimental and theoretical - and studying the evolution of band positions and widths with temperature. We present our methodology, including the development of the CosmicPAH-IRDB web application and spectral database, along with the associated cosmicPAHmfit multi-component spectral fitting tool. Our philosophy emphasizes open sharing, user-friendly access, and machine readability. The web application, tool and their update are accessible via the Cosmic PAH portal (https://cosmic-pah.irap.omp.eu/)
