论文标题
建模宇宙电离
Modeling Cosmic Reionization
论文作者
论文摘要
冷中性的层状氢转化为高度离子的温暖血浆标志着宇宙黑暗时代的末端和星系时代的开始。该过程的细节反映了辐射和热量的早期来源的性质，宇宙大规模结构的统计特征，宇宙重子的热力学和化学以及恒星形成和黑洞的历史。未来十年中新的地面和空间仪器和设施的许多大量数据集有望彻底改变我们对原始星系的理解，电离光子预算，层间层间介质（IGM）的物理学以及“宇宙网络中氢气的细粒度”。在这篇综述中，我们调查了电离时代建模的物理和关键方面，并描述了当前在该领域可用的计算技术和工具的各种范围。
The transformation of cold neutral intergalactic hydrogen into a highly ionized warm plasma marks the end of the cosmic dark ages and the beginning of the age of galaxies. The details of this process reflect the nature of the early sources of radiation and heat, the statistical characteristics of the large-scale structure of the Universe, the thermodynamics and chemistry of cosmic baryons, and the histories of star formation and black hole accretion. A number of massive data sets from new ground- and space-based instruments and facilities over the next decade are poised to revolutionize our understanding of primeval galaxies, the reionization photon budget, the physics of the intergalactic medium (IGM), and the fine-grained properties of hydrogen gas in the "cosmic web". In this review we survey the physics and key aspects of reionization-era modeling and describe the diverse range of computational techniques and tools currently available in this field.
