论文标题
来源计数为7.7至21美元$ $ m $ m的ceors领域，詹姆斯·韦伯（James Webb）太空望远镜
Source counts at 7.7 to 21 $μ$m in CEERS field with James Webb Space Telescope
论文作者
论文摘要
来源计数 - 源的数量密度是通量密度的函数 - 代表了观察宇宙学的基本指标之一，因为它们的直接和简单性质。它是一个重要的工具，可提供有关星系形成和进化的信息。来源计数是直接测量。与需要更多观察性输入（例如光度/质量功能）的高级分析相比，它受到任何宇宙参数假设的影响较小，也不受亮度传播的任何误差的影响。在这项研究中，我们介绍了六个中红外频段的来源计数，即7.7、10、12.8、15、18、18和21 $μ$ m，来自詹姆斯·韦伯太空望远镜（JWST）的mir仪器。与前几代红外空间望远镜实现的红外源计数形成鲜明对比的是，我们的源计数可深入研究高达$ \ sim $ 100倍的$ 100倍，展示了JWST的非凡灵敏度，并与基于上一观测值的模型预测保持一致。在一项后续研究中，我们利用我们的源数来建立一个提供物理解释的新的IR Galaxy人群进化模型。
Source counts -- the number density of sources as a function of flux density -- represent one of the fundamental metrics in observational cosmology due to their straightforward and simple nature. It is an important tool that provides information on galaxy formation and evolution. Source counting is a direct measurement. Compared to advanced analyzes that require more observational input such as luminosity/mass functions, it is less affected by any cosmological parameter assumptions or any errors propagated from luminosities. In this study, we present source counts at the six mid-infrared bands, i.e., 7.7, 10, 12.8, 15, 18, and 21 $μ$m from the MIR instrument of the James Webb Space Telescope (JWST). Contrasted with the infrared source counts achieved by prior generations of infrared space telescopes, our source counts delve up to $\sim$100 times deeper, showcasing the exceptional sensitivity of the JWST, and aligning with the model predictions based on preceding observations. In a follow-up study, we utilize our source counts to establish a new IR galaxy population evolutionary model that provides a physical interpretation.
