Maurizio Salaris1, Santi Cassisi2,3. 1. Astrophysics Research Institute, Liverpool John Moores University, IC2 Liverpool Science Park, 146 Brownlow Hill, L3 5RF, Liverpool, UK. 2. INAF-Osservatorio Astronomico Collurania, Via Mentore Maggini, 64100 Teramo, Italy. 3. Instituto de Astrofísica de Canarias, Via Láctea s/n. E38205 La Laguna, Tenerife, Spain.
Abstract
Stellar evolution computations provide the foundation of several methods applied to study the evolutionary properties of stars and stellar populations, both Galactic and extragalactic. The accuracy of the results obtained with these techniques is linked to the accuracy of the stellar models, and in this context the correct treatment of the transport of chemical elements is crucial. Unfortunately, in many respects calculations of the evolution of the chemical abundance profiles in stars are still affected by sometimes sizable uncertainties. Here, we review the various mechanisms of element transport included in the current generation of stellar evolution calculations, how they are implemented, the free parameters and uncertainties involved, the impact on the models and the observational constraints.
Stellar evolution computan class="Chemical">tions provide the foundation of several methods applied to study the evolutionary properties of stars and stellar populations, both Galactic and extragalactic. The accuracy of the results obtained with these techniques is linked to the accuracy of the stellar models, and in this context the correct treatment of the transport of chemical elements is crucial. Unfortunately, in many respects calculations of the evolution of the chemical abundance profiles in stars are still affected by sometimes sizable uncertainties. Here, we review the various mechanisms of element transport included in the current generation of stellar evolution calculations, how they are implemented, the free parameters and uncertainties involved, the impact on the models and theobservational constraints.
Authors: Paul G Beck; Josefina Montalban; Thomas Kallinger; Joris De Ridder; Conny Aerts; Rafael A García; Saskia Hekker; Marc-Antoine Dupret; Benoit Mosser; Patrick Eggenberger; Dennis Stello; Yvonne Elsworth; Søren Frandsen; Fabien Carrier; Michel Hillen; Michael Gruberbauer; Jørgen Christensen-Dalsgaard; Andrea Miglio; Marica Valentini; Timothy R Bedding; Hans Kjeldsen; Forrest R Girouard; Jennifer R Hall; Khadeejah A Ibrahim Journal: Nature Date: 2011-12-07 Impact factor: 49.962
Authors: Enrique García-Berro; Santiago Torres; Leandro G Althaus; Isabel Renedo; Pablo Lorén-Aguilar; Alejandro H Córsico; René D Rohrmann; Maurizio Salaris; Jordi Isern Journal: Nature Date: 2010-05-13 Impact factor: 49.962
Authors: Jérôme Daligault; Scott D Baalrud; Charles E Starrett; Didier Saumon; Travis Sjostrom Journal: Phys Rev Lett Date: 2016-02-17 Impact factor: 9.161