Automatic search for optimal models using Levenberg-Marquardt algorithm

Sébastien Deheuvels (1) , Yveline Lebreton (2, 3)

1 IRAP - Institut de recherche en astrophysique et planétologie
2 GEPI - Galaxies, Etoiles, Physique, Instrumentation
3 IPR - Institut de Physique de Rennes

We present the procedure used to optimize stellar models using the Levenberg-Marquardt algorithm in the context of the preparation of the PLATO mission. We discuss the different problems encountered and how they can be fixed (correlated observables, ill-conditioned matrixes, error estimation).

Domaines: Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]; Physique [physics]

Sébastien Deheuvels, Yveline Lebreton. Automatic search for optimal models using Levenberg-Marquardt algorithm. PLATO WP120 2016 Meeting, May 2016, Meudon, France. ⟨hal-01407394⟩