细节中的魔鬼：来自太阳周期的参数串扰和太阳p模式频率的估计
A devil in the detail: parameter cross-talk from the solar cycle and estimation of solar p-mode frequencies
摘要：
在11年的太阳活动周期中，太阳p模的频率、功率和阻尼率都是变化的。在这里，我们表明，这些参数的同时变化引起一个微妙的串扰效应，我们称之为“魔鬼的细节”，偏置的p-模式的频率估计从分析长功率频谱。我们还表明，在功率频谱中观察到的共振峰显示由于效果小的失真。我们的论文大部分致力于研究低l p模式对太阳作为恒星观测的影响。我们表明，这些数据的影响的意义是边际的。我们还简要地触及可能的L依赖的效果，并讨论了这些结果对太阳结构反演的影响。
英文摘要：
Frequencies, powers and damping rates of the solar p modes are all observed to vary over the 11-yr solar activity cycle. Here, we show that simultaneous variations of these parameters give rise to a subtle cross-talk effect, which we call the ``devil in the detail'', that biases p-mode frequencies estimated from analysis of long power frequency spectra. We also show that the resonant peaks observed in the power frequency spectra show small distortions due to the effect. Most of our paper is devoted to a study of the effect for Sun-as-a-star observations of the low-l p modes. We show that for these data the significance of the effect is marginal. We also touch briefly on the likely l dependence of the effect, and discuss the implications of these results for solar structure inversions.
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