Presupernova structure of massive stars

Casey A. Meakin, Tuguldur Sukhbold, W. David Arnett

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Issues concerning the structure and evolution of core collapse progenitor stars, and stellar evolution in general, are discussed with an emphasis on interior evolution. We discuss some recent results that address quantifying the uncertainties inherent in modern stellar evolution calculations, and we describe a research effort aimed at investigating the transport and mixing processes associated with stellar turbulence, which is arguably the greatest source of uncertainty in supernova progenitor structure, besides mass loss, at the time of core collapse. We highlight the important role played by precision observations of stellar parameters in constraining theoretical models, as well as the physical insight that can be garnered from three-dimensional hydrodynamic simulation.

Original languageEnglish (US)
Pages (from-to)123-128
Number of pages6
JournalAstrophysics and Space Science
Volume336
Issue number1
DOIs
StatePublished - Nov 1 2011

Keywords

  • Convection
  • Stars: interiors
  • Turbulence

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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