We present V and I photometry for the Be/X-ray binary Swift J010745.0-722740 taken in 1997–2020. The data show recurring outbursts, with an amplitude up to 0.4 mag and an improved orbital period of 1180.0 0.3 days. The light curve during outburst has a double-peaked profile, with a rapid rise and gradual decline. The effective temperature of the outburst region is ∼6200 K, much cooler than that of an underlying Be star.

中文翻译：

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Be/X 射线二进制 Swift J010745.0-722740 中光爆发的光度测量

我们展示了 1997-2020 年拍摄的 Be/X 射线双星 Swift J010745.0-722740 的V和I光度计。数据显示反复爆发，振幅高达 0.4 mag，轨道周期改善为 1180.0 0.3 天。爆发期的光变曲线呈双峰型，上升迅速，逐渐下降。爆发区的有效温度约为 6200 K，远低于下方的 Be 星。