AI 中文总结
本研究通过对比WDEC与LPCODE对白矮星的星震学拟合结果，验证了两类模型的一致性，并探究了化学轮廓约束、模式加权等因素对拟合的影响，为白矮星批量星震学拟合提供了基础。
AI 中文摘要
我们使用一组化学轮廓与LPCODE模型高度相似的WDEC模型，对4颗DAV型白矮星开展星震学拟合，并将结果与已发表的使用LPCODE的星震学拟合结果（Romero等人，2017）进行比较。这4颗天体分别是KIC 11911480、J113655.17+040952.6、KIC 4552982和GD1212。这些控制实验中结果的相似性表明模型具有一致性：在输入条件相似时，LPCODE和WDEC会生成相似的模型并计算出相似的周期。我们进一步通过放宽化学轮廓的约束，对相同的4颗DAV型白矮星开展星震学拟合，探究计算模型拟合优度时不同模式加权方法的影响，以及仅纳入已知周期谱子集的影响。此类数值实验可助力近期及未来利用WDEC对大量DAV型和DBV型白矮星开展流水线拟合的工作建立更坚实的基础（Hall等人，2023）。
英文摘要
We perform the asteroseismic fitting of 4 DAVs using a grid of WDEC models with chemical pro- files that closely mimic those of the LPCODE models and compare them with published asteroseis- mic fitting results using the LPCODE (Romero et al. 2017). These 4 objects are KIC 11911480, J113655.17+040952.6, KIC 4552982, and GD1212. The similarities in the results in those controlled experiments point to a consistency in the models. Given similar input, the LPCODE and the WDEC make similar models and calculate similar periods. We further perform the asteroseismic fitting of the same 4 DAVs by relaxing the constraints on the chemical profiles. We explore the effects of different methods for weighing the modes when calculating the goodness of fit of the models, as well as the effect of only including a subset of the known period spectrum. Such numerical experiments can help place recent and future efforts in pipeline fitting of numerous DAVs and DBVs using the WDEC on firmer footing (Hall et al. 2023).
Comments12 pages, 7 figures, published in the Astrophysical Journal
Journal refThe Astrophysical Journal, 2024, Volume 974, Issue 2, id.183
