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Title: Multidimensional simulations of core-collapse supernovae and

Abstract

Core-collapse supernovae (CCSNe), the culmination of massive stellar evolution, are the principle actors in the story of our elemental origins. Our understanding of these events, while still incomplete, centers around a neutrino-driven central engine which is highly hydrodynamically-unstable. Simulations of increasing sophistication show a shock that stalls for hundreds of milliseconds before reviving. Though brought back to life by neutrino heating, the development of the supernova explosion is inextricably linked to three dimensional fluid flows. Regrettably, much of our understanding of the nucleosynthesis that occurs in these explosions, and their impact on galactic chemical evolution, is based on spherically symmetric simulations with parameterized explosions, ignoring much that has been learned about the central engine of these supernovae over the past two decades. Here in this paper we discuss recent results from two-dimensional CCSN simulations using our CHIMERA code, as well as ongoing three-dimensional simulations, and discuss how the multidimensional character of the explosions directly impacts the nucleosynthesis and other observables of core-collapse supernovae.

Authors:
ORCiD logo [1]; ORCiD logo [2];  [2];  [3];  [2]; ORCiD logo [4];  [5];  [6]; ORCiD logo [7];  [8];  [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
  2. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
  3. Florida Atlantic Univ., Boca Raton, FL (United States). Dept. of Physics
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). National Center for Computational Sciences; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division
  5. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Joint Inst. for Computational Sciences
  6. North Carolina State Univ., Raleigh, NC (United States). Dept. of Physics
  7. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Computer Science & Mathematics Division
  8. National Science Foundation (NSF), Arlington, VA (United States). Physics Division
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
OSTI Identifier:
1495964
Grant/Contract Number:  
AC05-00OR22725; OCI-0749242; OCI-0749204; OCI-0749248
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
PoS Proceedings of Science
Additional Journal Information:
Journal Volume: 204; Journal Issue: 019; Journal ID: ISSN 1824-8039
Publisher:
SISSA
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Hix, William Raphael, Harris, James Austin, Lentz, Eric J., Bruenn, Stephen, Chertkow, Merek A., Messer, Bronson, Mezzacappa, Anthony, Blondin, John, Endeve, Eirik, Marronetti, Pedro, and Yakunin, Konstantin N. Multidimensional simulations of core-collapse supernovae and. United States: N. p., 2015. Web. doi:10.22323/1.204.0019.
Hix, William Raphael, Harris, James Austin, Lentz, Eric J., Bruenn, Stephen, Chertkow, Merek A., Messer, Bronson, Mezzacappa, Anthony, Blondin, John, Endeve, Eirik, Marronetti, Pedro, & Yakunin, Konstantin N. Multidimensional simulations of core-collapse supernovae and. United States. https://doi.org/10.22323/1.204.0019
Hix, William Raphael, Harris, James Austin, Lentz, Eric J., Bruenn, Stephen, Chertkow, Merek A., Messer, Bronson, Mezzacappa, Anthony, Blondin, John, Endeve, Eirik, Marronetti, Pedro, and Yakunin, Konstantin N. 2015. "Multidimensional simulations of core-collapse supernovae and". United States. https://doi.org/10.22323/1.204.0019. https://www.osti.gov/servlets/purl/1495964.
@article{osti_1495964,
title = {Multidimensional simulations of core-collapse supernovae and},
author = {Hix, William Raphael and Harris, James Austin and Lentz, Eric J. and Bruenn, Stephen and Chertkow, Merek A. and Messer, Bronson and Mezzacappa, Anthony and Blondin, John and Endeve, Eirik and Marronetti, Pedro and Yakunin, Konstantin N.},
abstractNote = {Core-collapse supernovae (CCSNe), the culmination of massive stellar evolution, are the principle actors in the story of our elemental origins. Our understanding of these events, while still incomplete, centers around a neutrino-driven central engine which is highly hydrodynamically-unstable. Simulations of increasing sophistication show a shock that stalls for hundreds of milliseconds before reviving. Though brought back to life by neutrino heating, the development of the supernova explosion is inextricably linked to three dimensional fluid flows. Regrettably, much of our understanding of the nucleosynthesis that occurs in these explosions, and their impact on galactic chemical evolution, is based on spherically symmetric simulations with parameterized explosions, ignoring much that has been learned about the central engine of these supernovae over the past two decades. Here in this paper we discuss recent results from two-dimensional CCSN simulations using our CHIMERA code, as well as ongoing three-dimensional simulations, and discuss how the multidimensional character of the explosions directly impacts the nucleosynthesis and other observables of core-collapse supernovae.},
doi = {10.22323/1.204.0019},
url = {https://www.osti.gov/biblio/1495964}, journal = {PoS Proceedings of Science},
issn = {1824-8039},
number = 019,
volume = 204,
place = {United States},
year = {Fri Oct 09 00:00:00 EDT 2015},
month = {Fri Oct 09 00:00:00 EDT 2015}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Figures / Tables:

Figure 1 Figure 1: Comparison of the explosion energy and nickel mass determined from observations to those resulting from axisymmetric simulations from the CHIMERA code. See Bruenn et al. [3] for more details.

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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.