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arXiv · 2310.19649

Asteroseismic modelling strategies in the PLATO era. II. Automation of seismic inversions and quality assessment procedure

Jérôme Bétrisey·Gaël Buldgen·Daniel R. Reese·Georges Meynet
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Abstract

*Context*. In the framework of the PLATO mission, to be launched in late 2026, seismic inversion techniques will play a key role in the mission precision requirements of the stellar mass, radius, and age. It is therefore relevant to discuss the challenges of the automation of seismic inversions, which were originally developed for individual modelling.\\ *Aims*. We tested the performance of our newly developed quality assessment procedure of seismic inversions, which was designed in the perspective of a pipeline implementation.\\ *Methods*. We applied our assessment procedure on a testing set composed of 26 reference models. We divided our testing set into two categories, calibrator targets whose inversion behaviour is well known from the literature and targets for which we assessed manually the quality of the inversion. We then compared the results of our assessment procedure with our expectations as a human modeller for three types of inversions, the mean density inversion, the acoustic radius inversion, and the central entropy inversion.\\ *Results*. We found that our quality assessment procedure performs as well as a human modeller. The mean density inversion and the acoustic radius inversion are suited for a large-scale application, but not the central entropy inversion, at least in its current form.\\ *Conclusions*. Our assessment procedure showed promising results for a pipeline implementation. It is based on by-products of the inversion and therefore requires few numerical resources to assess quickly the quality of an inversion result.

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Jérôme Bétrisey, Gaël Buldgen, Daniel R. Reese, Georges Meynet. 2023-10-30. Asteroseismic modelling strategies in the PLATO era. II. Automation of seismic inversions and quality assessment procedure. https://arxiv.org/abs/2310.19649

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