论文标题
量化具有脚点波不对称的冠状波的共振阻尼的证据
Quantifying the evidence for resonant damping of coronal waves with foot-point wave power asymmetry
论文作者
论文摘要
我们使用冠状动脉和贝叶斯分析中传播波的冠状多通道极化计（COMP）观察，以评估具有共振阻尼和脚点波不对称的模型的证据。考虑了两个嵌套模型。还原模型将共振阻尼视为向外波和内向波功率之间测量差异的唯一原因。较大的模型考虑了脚步处的额外的不对称源。我们首先在模型和观察到的数据上计算参数的概率分布。然后，获得的约束来计算每个模型的证据。我们发现我们需要考虑更大的模型来解释COMP数据并准确地推断阻尼比，以便更好地评估波浪对冠状加热的可能贡献。
We use Coronal Multi-channel Polarimeter (CoMP) observations of propagating waves in the solar corona and Bayesian analysis to assess the evidence of models with resonant damping and foot-point wave power asymmetries. Two nested models are considered. The reduced model considers resonant damping as the sole cause of the measured discrepancy between outward and inward wave power. The larger model contemplates an extra source of asymmetry with origin at the foot-points. We first compute probability distributions of parameters conditional on the models and the observed data. The obtained constraints are then used to calculate the evidence for each model in view of data. We find that we need to consider the larger model to explain CoMP data and to accurately infer the damping ratio, hence, to better assess the possible contribution of the waves to coronal heating.
