PN A66 70 i-band light curve

We present a detailed study of the barium star at the heart of the planetary nebula Abell 70. Time-series photometry obtained over a period of more than ten years demonstrates...本研究针对行星状星云（planetary nebula）阿贝尔70（Abell 70）核心的钡星（barium star）展开了详尽的分析。我们通过十余年时间采集的时间序列测光（time-series photometry）数据证实了……