UKIDSS JHK photometry of W33A

W33A is a well-known example of a high-mass young stellar object showing evidence of a circumstellar disc. We revisited the -band NIFS/Gemini North observations of the W33A...W33A是广为人知的大质量年轻恒星天体（high-mass young stellar object）典型样本，其存在星周盘（circumstellar disc）的观测证据已被证实。本研究重新分析了W33A在某波段下的NIFS/双子座北望远镜（Gemini North）观测数据。