RR风景如画：一颗古老的新星，显示出超级驼峰和QPO
RR Pictoris: an old nova showing superhumps and QPOs
摘要：
本文介绍了老新星RR Pic的时间分辨V测光。除了驼峰状的变化，光变曲线显示了RR Pic典型的强烈闪烁和随机变化。我们没有发现任何令人信服的证据，以前报告的日食。外推的日食相位与一个广泛的最小值相吻合，但比较光变曲线的整体形状表明日食实际上应该位于相位0.2左右。我们从这些数据中得到的轨道周期与旧的轨道周期吻合得很好，任何不确定性都太小，不足以解释可能的相移。除了通常被解释为轨道周期的3.48小时周期外，我们还发现了P= 3.78小时的额外周期，我们将其解释为系统的超级峰周期;相应的岁差周期1.79天也出现在数据中。我们还发现了一个13分钟的准周期振荡的存在的迹象。
英文摘要：
We present time-resolved V-photometry of the old nova RR Pic. Apart from the hump-like variability, the light curves show the strong flickering and random variation typical for RR Pic. We do not find any convincing evidence for the previously reported eclipse. The extrapolated eclipse phase coincides with a broad minimum, but comparing the overall shape of the light curve suggests that the eclipse should actually be located around phase 0.2. The orbital period which we derive from these data agrees well with the old one, any uncertainty is too small to account for the possible phase shift. Apart from the 3.48h period, which is usually interpreted as the orbital one, we find an additional period at P=3.78h, which we interpret as the superhump period of the system; the corresponding precession period at 1.79d is also present in the data. We also find indications for the presence of a 13min quasi-periodic oscillation.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
