2008/06/30 by M. Soriano, M. Flores Soriano, S. Vauclair · 21 citations
Physics and Astronomy · #Adiabatic process #Asteroseismology #Astro and Planetary Science #Astronomy and Astrophysical Research #Astrophysics #Convection #Convection zone #Helioseismology #Helium #Mechanics #Oscillation (cell signaling) #Physics #Stars #Stellar evolution #Stellar structure #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1051/0004-6361:200809977
published in Astronomy and Astrophysics 488(3), 975-985 (EDP Sciences) · 14 pages, 10 figures, accepted for publication in A&A
arxiv created 2008/07/16 · openalex publication_date 2008/07/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Aims. Several frequency combinations are widely used in the analysis of stellar oscillations for comparisons between models and observations. In particular, the “small separations” can help constraining the stellar cores. We showed in a previous paper that they can change sign, in contradiction with the “asymptotic theory”, and that this behaviour could correspond to signatures of convective and/or helium cores. Here we analyse this behaviour in detail by systematic modelling during stellar evolution.