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High amplitude δ Scuti star BO Lyn with evidence of a late A-type companion in an elliptical orbit

Li, Lin-Jia; Qian, Sheng-Bang; Zhu, Li-Ying +2 more

We present 145 times of light maximum for high amplitude δ Scuti star BO Lyn based on several sky surveys (CRTS, DASCH, NSVS, OMC and SuperWASP) and our photometric observations. Combining with the data in literature, a total of 179 times of light maximum are used to analyze the O - C diagram of BO Lyn. We find that it can be described by an upwar…