The impact of hydrodynamic mixing on supernova progenitors

Patrick Young; Casey Meakin; David Arnett; Chris L. Fryer

doi:10.1086/447769

The impact of hydrodynamic mixing on supernova progenitors

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

Earth and Space Exploration, School of (SESE)

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

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 language	English (US)
Pages (from-to)	L101-L104
Journal	Astrophysical Journal
Volume	629
Issue number	2 II
DOIs	https://doi.org/10.1086/447769
State	Published - Aug 20 2005

Keywords

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

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/447769

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title = "The impact of hydrodynamic mixing on supernova progenitors",

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.",

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T1 - The impact of hydrodynamic mixing on supernova progenitors

AU - Young, Patrick

AU - Meakin, Casey

AU - Arnett, David

AU - Fryer, Chris L.

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Y1 - 2005/8/20

N2 - 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.

AB - 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.

KW - Hydrodynamics

KW - Nuclear reactions, nucleosynthesis, abundances

KW - Stars: evolution

KW - Supernovae: general

UR - http://www.scopus.com/inward/record.url?scp=25444508978&partnerID=8YFLogxK

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DO - 10.1086/447769

M3 - Article

AN - SCOPUS:25444508978

SN - 0004-637X

VL - 629

SP - L101-L104

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 II

ER -

The impact of hydrodynamic mixing on supernova progenitors

Abstract

Keywords

ASJC Scopus subject areas

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