好奇变量实验（CURVE）。2006年7月天琴座V419超爆发的CCD测光
Curious Variables Experiment (CURVE). CCD Photometry of V419 Lyr in its 2006 July Superoutburst
摘要：
我们报告广泛的测光的矮新星V419天琴座整个2006年7月的超级爆发，直到平静。该超爆发的振幅约为3.5级，持续时间至少为15天，其特征是存在明显的超级峰，平均周期为Psh=0.089985（58）天（129.58 ± 0.08 min）。根据Stolz-Schoembs关系式，这表明双星的轨道周期应该在0.086天左右，即在周期间隔内。在超爆发期间，超峰周期以dotP/Psh=-24.8（2.2）*10^-5的速率减小，这是SU UMa系统中观测到的最高值之一。在平台期结束时，超级峰期稳定在0.08983（8）天。超峰振幅从超爆发开始时的0.3等下降到其结束时的0.1等。在V419 Lyr的情况下，我们没有观察到明显的次级驼峰，这似乎是长周期系统的典型特征。
英文摘要：
We report extensive photometry of the dwarf nova V419 Lyr throughout its 2006 July superoutburst till quiescence. The superoutburst with amplitude of ~3.5 magnitude lasted at least 15 days and was characterized by the presence of clear superhumps with a mean period of Psh=0.089985(58) days (129.58+-0.08 min). According to the Stolz-Schoembs relation, this indicates that the orbital period of the binary should be around 0.086 days i.e. within the period gap. During the superoutburst the superhump period was decreasing with the rate of dotP/Psh=-24.8(2.2)*10^-5, which is one of the highest values ever observed in SU UMa systems. At the end of the plateau phase, the superhump period stabilized at a value of 0.08983(8) days. The superhump amplitude decreased from 0.3 mag at the beginning of the superoutburst to 0.1 mag at its end. In the case of V419 Lyr we have not observed clear secondary humps, which seems to be typical for long period systems.
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