UGSU型矮新星SDSSp J082409 .73+493124.4的超峰周期
Superhump periods in the UGSU-type dwarf nova SDSSp J082409.73+493124.4
摘要：
我们目前的观测和分析的第一次报告的超爆发的矮新星SDSSp J082409.73+493124.4在2007年2月/3月。从观测到的最大星等15.4C开始，它以0.09等/日的速度下降了7天，又在16等附近变平了5天，然后迅速回到19.4等的平静状态。爆发后期光变曲线的平坦化与超级峰的再生长无关。在最初的5天里，我们观测到了周期为0.06954（5）d的普通超级峰，从而确认了它是UGSU型矮新星的分类。随后是一个相变到晚期的超峰，周期为0.06921（6）d。我们在0.0687（6）d处发现了一个小而持久的信号，我们将其解释为轨道周期。
英文摘要：
We present observations and analysis of the first reported superoutburst of the dwarf nova SDSSp J082409.73+493124.4 during February/March 2007. From a maximum observed magnitude of 15.4C it declined at 0.09 mag/d for 7 days, flattened out around magnitude 16 for a further 5 days and then returned rapidly to quiescence at magnitude 19.4. The flattening of the light curve late in the outburst was not associated with a re-growth of superhumps. For the first 5 days we observed common superhumps with period 0.06954(5) d, thus confirming its classification as a UGSU-type dwarf nova. This was followed by a phase transition to late superhumps with period 0.06921(6) d. We found a small but persistent signal at 0.0687(6) d which we interpret as the orbital period.
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