Core to UCHII region evolution in W49A

We aim to identify and characterize cores in the high-mass proto-cluster W49, determine their evolutionary stages and measure the associated lifetimes. We built a catalog of 129...本研究旨在识别并表征大质量原星团（high-mass proto-cluster）W49内的星核，确定其演化阶段并测量其关联寿命。我们构建了包含129……的星核目录。