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An improved parametric method for evaluating radiative accelerations in stellar interiors

2020/08/25 by G. Alecian, F. Leblanc, F. LeBlanc
Physics and Astronomy · #Astrophysics #Astrophysics and Star Formation Studies #Domain (mathematical analysis) #Mathematical analysis #Opacity #Optics #Parametric statistics #Physics #Radiative transfer #Solar and Space Plasma Dynamics #Star formation #Stars #Stellar evolution #Stellar physics #Stellar, planetary, and galactic studies #Young stellar object #astro-ph.SR

paper · pdf · doi:10.1093/mnras/staa2584

10 pages, 3 figures, to be published in MNRAS

arxiv created 2020/08/25 · openalex publication_date 2020/08/25 · arxiv updated 2020/08/26 · openalex created_date 2020/09/01 · openalex updated_date 2026/08/05

Abstract

ABSTRACT The single-valued parameter (SVP) method is a parametric method that offers the possibility of computing radiative accelerations in stellar interiors much faster than other methods. It has been implemented in a few stellar evolution numerical codes for about a decade. In this paper, we describe improvements we have recently brought in the process of preparing, from atomic/opacity data bases, the SVP tables that are needed to use the method, and their extension to a larger stellar mass domain (from 1 to 10 solar mass) on the main sequence. We discuss the validity domain of the method. We also present the website from where new tables and codes can be freely accessed and implemented in stellar evolution codes.

Citations