Bayesian Rotation Inversion of KIC 11145123
Bayesian Rotation Inversion of KIC 11145123
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DOI：
10.3847/1538-4357/ac4699
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发表时间：
2021-12
期刊：
影响因子：
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通讯作者：
Y. Hatta;T. Sekii;O. Benomar;M. Takata
中科院分区：
文献类型：
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作者：
Y. Hatta;T. Sekii;O. Benomar;M. Takata
贝叶斯旋转反演，这使我们能够计算的概率模型的恒星旋转配置文件的计划，开发。该方案的验证与简单的旋转配置文件和相应的人工生成的旋转移位组已成功地进行，我们可以正确区分（正确的）旋转模型，预先准备产生的人工旋转移位，从其他（错误的）旋转模型。将贝叶斯方法应用于γ Dor-δ Sct型混合星星KIC 11145123，结果表明该星星的对流核可能比该星星的其他区域旋转得快（快10倍）.这一结果与Hatta等人先前提出的基于三区模型的结果一致，进一步加强了他们从贝叶斯观点的论证。
A scheme of Bayesian rotation inversion, which allows us to compute the probability of a model of a stellar rotational profile, is developed. The validation of the scheme with simple rotational profiles and the corresponding sets of artificially generated rotational shifts has been successfully carried out, and we can correctly distinguish the (right) rotational model, prepared beforehand for generating the artificial rotational shifts, from the other (wrong) rotational model. The Bayesian scheme is applied to a γ Dor–δ Sct-type hybrid star, KIC 11145123, leading to a result that the convective core of the star might be rotating much faster (∼10 times faster) than the other regions of the star. The result is consistent with that previously suggested by Hatta et al. based on a three-zone modeling, further strengthening their argument from a Bayesian point of view.