Dwarf Novae in the Shortest Orbital Period Regime: I. A New Short Period Dwarf Nova, OT J055717+683226

Publications of the Astronomical Society of Japan(2010)

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摘要
We report on the observation of a new dwarf nova (DN), OT J055717+683226 (OT: optical transient), during the period of its first-recorded superoutburst in 2006 December. Our observation shows that this object is an SU UMa-type dwarf nova having a very short superhump period of 76.67$\pm$0.03 min (0.05324$\pm$0.00002 d). The next superoutburst was observed in 2008 March. The recurrence time of supe...
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关键词
accretion, accretion disks,stars: individual (OT J055717+683226),novae, cataclysmic variables
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