论文标题
打破线强度映射中的强度偏置退化性
Breaking the intensity-bias degeneracy in line intensity mapping
论文作者
论文摘要
线强度映射正在迅速获得突出，作为了解高红移时星系演化和宇宙学的一种工具。但是，这些调查的标准功率谱分析遭受了整体平均线强度与发射星系的偏置之间的严重退化。我们概述了Voxel强度分布（VID）的新形式主义，这是一种单点统计量，已知包含功率谱以外的信息。我们使用此新计算首次显示可以使用VID来打破强度映射数据中的关键退化。
Line intensity mapping is rapidly gaining prominence as a tool to understand galaxy evolution and cosmology at high redshift. However, the standard power spectrum analysis for these surveys suffers from a tight degeneracy between the overall mean line intensity and the bias of the emitting galaxies. We outline a new formalism for the Voxel Intensity Distribution (VID), a one-point statistic which is known to contain information beyond the power spectrum. We use this new calculation to show for the first time that the VID can be used to break this key degeneracy in intensity mapping data.
