Halo red giants reddening

Updated uvby observations for a larger sample of metal-deficient red giants are presented and combined with a select sample of data from the literature transformed to a common...本文呈现了针对更大样本贫金属红巨星的更新版uvby测光观测数据，并将其与经转换至统一标度的精选文献数据样本相结合。