The impact of hydrodynamic mixing on supernova progenitors

Patrick A. Young, Casey Meakin, W David Arnett, Chris L. Fryer

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Recent multidimensional hydrodynamic simulations have demonstrated the importance of hydrodynamic motions in the convective boundary and radiative regions of stars to transport of energy, momentum, and composition. The impact of these processes increases with stellar mass. Stellar models that approximate this physics have been tested on several classes of observational problems. In this Letter, we examine the implications of the improved treatment for supernova progenitors. The improved models predict substantially different interior structures. We present presupernova conditions and simple explosion calculations from stellar models with and without the improved mixing treatment at 23 M. The results differ substantially.

Original languageEnglish (US)
JournalAstrophysical Journal
Volume629
Issue number2 II
DOIs
StatePublished - Aug 20 2005

Fingerprint

stellar models
supernovae
hydrodynamics
stellar mass
explosions
kinetic energy
stars
physics
explosion
momentum
simulation
energy

Keywords

  • Hydrodynamics
  • Nuclear reactions, nucleosynthesis, abundances
  • Stars: evolution
  • Supernovae: general

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

The impact of hydrodynamic mixing on supernova progenitors. / Young, Patrick A.; Meakin, Casey; Arnett, W David; Fryer, Chris L.

In: Astrophysical Journal, Vol. 629, No. 2 II, 20.08.2005.

Research output: Contribution to journalArticle

Young, Patrick A. ; Meakin, Casey ; Arnett, W David ; Fryer, Chris L. / The impact of hydrodynamic mixing on supernova progenitors. In: Astrophysical Journal. 2005 ; Vol. 629, No. 2 II.
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