在MOST南河三数据中寻找p模：另一种观点
Searching for p-modes in MOST Procyon data: Another view
摘要：
2004年由MOST卫星获得的南河三光度计已经被几个小组搜索了p模式，有时有相互矛盾的解释。我们探讨了两个可能的因素，使分析复杂化，并可能导致这些数据中的p模式的错误报告。两种方法被用来说明的作用，微妙的仪器效应的光度：时间-频率分析，和搜索规则间隔的峰在傅立叶光谱的基础上的阶梯光栅光谱法。我们没有找到令人信服的证据的p模式信号在MOST南河三的数据。我们可以解释一个明显的过剩的功率接近p模式的频率范围和迹象的结构中阶梯光栅的仪器效应。
英文摘要：
Photometry of Procyon obtained by the MOST satellite in 2004 has been searched for p modes by several groups, with sometimes contradictory interpretations. We explore two possible factors that complicate the analysis and may lead to erroneous reports of p modes in these data. Two methods are used to illustrate the role of subtle instrumental effects in the photometry: time-frequency analysis, and a search for regularly spaced peaks in a Fourier spectrum based on the echelle diagramme approach. We find no convincing evidence of a p-mode signal in the MOST Procyon data. We can account for an apparent excess of power close to the p-mode frequency range and signs of structure in an echelle diagramme in terms of instrumental effects.
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