CNN Maps

Maps of the cold neutral medium (CNM) fraction (f_CNM) and the correction to optically-thin HI column density for HI optical depth (R_HI) generated by the CNN, for the Northern and Southern skies at high Galactic latitude (|b|>30) within the Arecibo field of view (RA 0-360 deg, Dec 0.5-38 deg) using the GALFA-HI survey. Map uncertainties are included, and considered as lower limits (see paper for details). Two formats are provided: zenith-equal-area (ZEA) projection (*_zea.fits), and HEALPix format (*_hpx.fits).由卷积神经网络（convolutional neural network, CNN）生成的冷中性介质（cold neutral medium, CNM）占比（f_CNM）图，以及针对中性氢（HI）光学深度的光学薄中性氢（HI）柱密度校正因子（R_HI）图，其覆盖范围为阿雷西博视场（赤经0°~360°，赤纬0.5°~38°）内的北天与南天银道面高纬区域（|银纬|>30°），且基于GALFA-HI巡天数据构建。各图像均包含不确定度估值，且该估值被视为下限值（详细说明参见相关论文）。本次数据集提供两种存储格式：天顶等面积（zenith-equal-area, ZEA）投影格式（*_zea.fits）与HEALPix格式（*_hpx.fits）。