Combining all available photometric data from various surveys and literature with our observations, we present 10 sets of light curves for the eclipsing binary V0599 Aur covering a timescale of 20 yr. During the last two decades, the O’Connell effect continuously varied and went through at least two flips between positive and negative effects. The photometric solutions from our two sets of multicolored light curves show that V0599 Aur is a W-type shallow contact binary with an active spot on the secondary. Its absolute parameters are determined by combining the Gaia distance with the photometric solutions. The period investigation reveals a secular decrease and a cyclic variation in its orbital period. The former mainly originates from the mass transfer from the more massive secondary to the less massive primary. The latter can be preferentially explained as a result of cyclic magnetic activity of the secondary, with three observational supports: (1) the existence and evolution ...

中文翻译：

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W UMa型二元v0599 Aur的长期光度学和轨道周期变化：大约11年的磁活周期证据

将来自各种调查和文献的所有可用光度数据与我们的观察结果相结合，我们提出了10组遮盖二进制V0599 Aur的光曲线，涵盖了20年的时间尺度。在过去的二十年中，奥康奈尔效应不断变化，并且在正效应和负效应之间至少经历了两次翻转。来自我们两组彩色光曲线的光度学解决方案表明，V0599 Aur是W型浅接触双元，其次级具有一个有源点。它的绝对参数是通过将盖亚距离与测光解决方案相结合来确定的。周期研究表明，其轨道周期呈长期下降和周期性变化。前者主要源于从较大的中学到较小的小学的传质。