标题： 14个食双星的O'Connell效应的多波段分析 显示英文标题

标题： Multiband analysis of the O'Connell effect in 14 eclipsing binaries

摘要： O'Connell效应是食双星（EB）系统中的一种现象，当系统不在食时，光变曲线中会出现不相等的最大值。 尽管该效应已为人所知数十年，并且多年来提出了多种理论，但这一效应仍未被完全理解。 我们的目标是使用多波段方法寻找不同的O'Connell效应特性，将它们相互比较，并找到这些特性与系统物理参数之间的相关性。 我们展示了对14个新发现的显示O'Connell效应的EB系统的分析，这些系统的多波段数据是从小行星地球撞击最后警报系统（ATLAS）和Zwicky瞬变设施（ZTF）全天候调查中提取的。 我们通过一种新的建模过程，利用高斯拟合，在不同波段中测量了最大振幅差异（delta m）以及不同的光变曲线特征。 我们为O'Connell效应系统创建了一个全新的经验模型，此前该模型的分析因过度拟合而受到阻碍。 尽管O'Connell效应的幅度似乎在较短的有效波长下更为明显，这支持了冷星斑导致该效应的观点，但并未找到明确的相关性。 另一方面，我们确实发现了该效应的幅度与温度和周期之间存在强烈相关性，这两者与之前的一项研究结果不一致。 我们还发现，在同时显示正负O'Connell效应的系统中，与上述参数的相关性有所不同。 我们得出结论，尽管星斑可能是O'Connell效应的一个原因，但该效应很可能是多因素的；例如，密近双星成分之间的物理相互作用可能是另一个重要因素。 显示英文摘要

摘要： The O'Connell effect is a phenomenon in eclipsing binary (EB) systems that consists of unequal maxima in a light curve when out of eclipse. Despite being known for decades and with several theories proposed over the years, this effect is still not fully understood. Our goal is to find different O'Connell effect properties using a multiband approach, compare them with each other, and find correlations between these properties and the physical parameters of the systems. We present the analysis of 14 new EBs that show the O'Connell effect using multiband data extracted from the Asteroid Terrestrial-impact Last Alert System (ATLAS) and Zwicky Transient Facility (ZTF) all-sky surveys. We measured the difference in maximum amplitudes (delta m) alongside different light curve features in different passbands via a new modeling process that uses Gaussian fits. We created a brand-new phenomenological model for O'Connell effect systems whose analysis had previously been hampered by overfitting. Although the magnitude of the O'Connell effect seems to be more pronounced at shorter effective wavelengths, supporting the idea that cool starspots cause the effect, a conclusive correlation is not found. On the other hand, we do find strong correlations between the magnitude of the effect and both the temperature and the period, both of which are inconsistent with a previous study. We also find that in systems that show both positive and negative O'Connell effects, there are different correlations with the aforementioned parameters. We conclude that, even though starspots may be one cause of the O'Connell effect, it is likely a multipronged phenomenon; for instance, the physical interaction between the components of close binary stars may be another important factor.