论文标题
原始灰尘发射的起源空间望远镜的红移范围
Redshift Horizon for the Origins Space Telescope from Primordial Dust Emission
论文作者
论文摘要
我们通过应用原始粉尘发射的分析模型来探索使用下一代起源空间望远镜（OST）检测第一个星系的可能性。通过分析源密度作为红移（Z）的函数，并考虑使用原始调查光谱仪进行深场暴露，我们估计，对于尘埃对比比率高于典型原始星系的预期，用于检测一个单个源的红移地平线将高于Z〜7。另一方面，如果可以克服混淆限制，则远红外成像仪和偏光仪将在z> 7处检测更典型的淡淡系统。鉴于获得的结果具有原始尘埃的特性，我们得出结论，OST可以为早期宇宙中兴趣媒介的性质提供重要的线索。
We explore the possibility of detecting the first galaxies with the next generation Origins Space Telescope (OST) by applying an analytical model of primordial dust emission. By analysing source densities as a function of redshift (z), and considering deep-field exposures with the Origins Survey Spectrometer, we estimate that the redshift horizon for detecting one individual source would be above z~7 for systems with dust-to-metal ratios higher than those expected for typical primeval galaxies. On the other hand, if confusion limits could be overcome, the Far-infrared Imager and Polarimeter would enable the detection of more typical fainter systems at z>7. Given the dependence of the obtained results with the properties of primeval dust, we conclude that the OST could provide important clues to the nature of the interestellar medium in the early Universe.
