Quaia data products for cosmolgy analysis

The files below contain the data that were used in the cosmological analysis of the Gaia-unWISE quasar catalog (Quaia) in combination with CMB lensing data from <em>Planck</em> (Alonso et al. 2023). The files included are: <strong>cls_quaia_planckPR4_s8.fits</strong>: the complete set of power spectra and associated metadata (covariance matrix, redshift distributions) needed to reproduce the fiducial analysis of the paper. The file uses the sacc format. A short notebook showing how to interpret the data can be found here. <strong>selection_function_NSIDE64_G20.5_zsplit2binX.fits</strong>: the selection function map for bin X (0 and 1 for the Low-z and High-z bins used in the analysis, respectively), in HEALPix projection with N_side=64. To reproduce the power spectra used in the analysis, you will need to combine the selection functions above with the public Quaia catalog, and the PR4 CMB lensing maps from the Planck legacy archive.下述文件包含了结合<em>普朗克（Planck）</em>卫星宇宙微波背景（Cosmic Microwave Background，CMB）引力透镜数据（Alonso等，2023），开展Gaia-unWISE类星体星表（Quaia）宇宙学分析所使用的数据。所包含的文件如下： <strong>cls_quaia_planckPR4_s8.fits</strong>：可复现论文基准分析所需的全部功率谱及关联元数据（协方差矩阵、红移分布），该文件采用sacc格式。一份演示如何解读该数据的简易教程笔记本可在此处获取。 <strong>selection_function_NSIDE64_G20.5_zsplit2binX.fits</strong>：对应分箱X的选择函数图（分析中使用的低红移分箱与高红移分箱分别记为0和1），采用N_side=64的HEALPix投影格式。 若需复现分析中使用的功率谱，需将上述选择函数与公开的Quaia星表，以及来自普朗克遗产档案库的PR4版CMB引力透镜图相结合。