Stellar Inversion Techniques
arXiv:1711.01798 · doi:10.1007/978-3-319-59315-9_4
Abstract
Stellar seismic inversions have proved to be a powerful technique for probing the internal structure of stars, and paving the way for a better understanding of the underlying physics by revealing some of the shortcomings in current stellar models. In this lecture, we provide an introduction to this topic by explaining kernel-based inversion techniques. Specifically, we explain how various kernels are obtained from the pulsation equations, and describe inversion techniques such as the Regularised Least-Squares (RLS) and Optimally Localised Averages (OLA) methods.
20 pages, 8 figures. Lecture presented at the IVth Azores International Advanced School in Space Sciences on "Asteroseismology and Exoplanets: Listening to the Stars and Searching for New Worlds" (arXiv:1709.00645), which took place in Horta, Azores Islands, Portugal in July 2016
References in corpus (5)
- Global-Scale Turbulent Convection and Magnetic Dynamo Action in the Solar Envelope
- ADIPLS -- the Aarhus adiabatic oscillation package
- Fresh insights on the structure of the solar core
- Stellar acoustic radii, mean densities and ages from seismic inversion techniques
- Analysis of the linear approximation of seismic inversions for various structural pairs