Discovery and photometric study of the new in-the-gap SU UMa Dwarf Nova Var 73 Dra
Discovery and photometric study of the new in-the-gap SU UMa Dwarf Nova Var 73 Dra
复制标题
新型间隙 SU UMa Dwarf Nova Var 73 Dra 的发现和光度研究
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
E. Pavlenko
中科院分区：
文献类型：
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作者：
S. Antipin;E. Pavlenko
介绍了新矮新星Var 73 Dra的发现和首次研究。我们进行了监测和时间分辨的CCD观测，在2001年8月至10月，并检测到几个正常的爆发，复发时间约7-8天，一个稍微明亮的超级爆发的“高原”阶段，持续了13天。我们在超级爆发期间的测光清楚地显示了周期为0.0954（0：0001）天的超级峰的存在（尽管不能排除一天的别名周期，0.1053 d）。因此，观察到的特征使我们能够将Var 73 Dra分类为一颗新的SU UMa型矮新星，位于众所周知的灾变变星轨道周期分布间隙内。
We present the discovery and the first investigation of the new dwarf nova Var 73 Dra. We carried out monitoring and time-resolved CCD observations in 2001 August-October and detected several normal outbursts with a recurrence time of about 7-8 days and one slightly brighter superoutburst with a "plateau" phase that lasted 13 days. Our photometry during the superoutburst clearly shows the presence of superhumps with the period 0.0954 (0:0001) day (although the one-day alias period, 0.1053 d, could not be ruled out). So, the observed features allow us to classify Var 73 Dra as a new SU UMa-type dwarf nova within the well-known gap of orbital period distribution of cataclysmic variables.