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The Impact of Hydrodynamic Mixing on Supernova Progenitors | | Patrick A. Young
; Casey Meakin
; David Arnett
; Chris L. Fryer
; | | Date: |
5 Jul 2005 | | Journal: | Astrophys.J. 629 (2005) L101-L104 | | Subject: | astro-ph | | Affiliation: | 1,2), Casey Meakin , David Arnett , Chris L. Fryer (1,3) ( Theoretical Astrophysics, Los Alamos National Laboratory, Steward Observatory, The University of Arizona, Physics Dept., The University of Arizona | | 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 which approximate this physics have been tested on several classes of observational problems. In this paper we examine the implications of the improved treatment on supernova progenitors. The improved models predict substantially different interior structures. We present pre-supernova conditions and simple explosion calculations from stellar models with and without the improved mixing treatment at 23 solar masses. The results differ substantially. | | Source: | arXiv, astro-ph/0507104 | | Services: | Forum | Review | PDF | Favorites | |
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