与GLAST一起探索初星时代
Exploring First Stars Era with GLAST
摘要：
宇宙红外背景辐射（CIB）包括目前望远镜研究无法获得的物体的辐射，例如假定的第三星族，第一颗恒星。最近，第一批恒星产生显著CIB水平的强有力的直接证据来自斯皮策深度图像中发现的CIB波动。这样的CIB能级应该在高z伽玛暴和耀变体的光谱中留下独特的吸收特征，如[4]所建议的。在z>2时，GLAST源可以观测到这种吸收，测量这种吸收将提供有关第一代恒星的能量和成分的重要信息。
英文摘要：
Cosmic infrared background (CIB) includes emissions from objects inaccessible to current telescopic studies, such as the putative Population III, the first stars. Recently, strong direct evidence for significant CIB levels produced by the first stars came from CIB fluctuations discovered in deep Spitzer images. Such CIB levels should have left a unique absorption feature in the spectra of high-z GRBs and blazars as suggested in [4]. This is observable with GLAST sources at z>2 and measuring this absorption will give important information on energetics and constituents of the first stars era.
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