论文标题
多行观察，模型和数据需要了解紫外线辐射的星际物质的性质
Multi-line Observations, Models, and Data Needed to Understand the Nature of UV-irradiated Interstellar Matter
论文作者
论文摘要
来自ob型巨大恒星的远硫酸盐光子调节恒星形成星系中许多中性星际气体的加热，电离和化学。 FUV辐射和星际物质的相互作用发生在广泛称为光电分离区域（PDRS）的环境中。 PDR线诊断是来自大型恒星的辐射反馈的吸烟枪。提高我们对ISM中恒星反馈的理解需要量化PDR环境的能源预算，气体动态和化学组成。该目标要求天文仪器能够提供ISM（银河系和附近星系）的多线光谱图像。它还需要跨学科的合作，以获取ISM中发生的许多微物理过程的速率系数和横截面，这些过程包括在Meudon PDR代码等模型中。
Far-ultraviolet photons from OB-type massive stars regulate the heating, ionization, and chemistry of much of the neutral interstellar gas in star-forming galaxies. The interaction of FUV radiation and interstellar matter takes place in environments broadly known as photodissociation regions (PDRs). PDR line diagnostics are the smoking gun of the radiative feedback from massive stars. Improving our understanding of stellar feedback in the ISM requires quantifying the energy budget, gas dynamics, and chemical composition of PDR environments. This goal demands astronomical instrumentation able to deliver multi-line spectroscopic images of the ISM (of the Milky Way and nearby galaxies). It also requires interdisciplinary collaborations to obtain the rate coefficients and cross sections of the many microphysical processes that occur in the ISM and that are included in models such as the Meudon PDR code.
