Presupernova Structure of Massive Stars
Casey A. Meakin, Tuguldur Sukhbold, David Arnett
TL;DR
This paper investigates the interior structure and evolution of massive stars approaching core collapse, focusing on turbulence and mixing processes, and explores how observations can constrain theoretical models.
Contribution
It introduces a program to study turbulence and mixing in progenitor stars and discusses using stellar observations to refine models.
Findings
Turbulence and mixing are major uncertainties in progenitor models.
Observational data can help constrain theoretical predictions.
The study advances understanding of pre-supernova stellar structure.
Abstract
Issues concerning the structure and evolution of core collapse progenitor stars are discussed with an emphasis on interior evolution. We describe a program designed to investigate the transport and mixing processes associated with stellar turbulence, arguably the greatest source of uncertainty in progenitor structure, besides mass loss, at the time of core collapse. An effort to use precision observations of stellar parameters to constrain theoretical modeling is also described.
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