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Title: Comparisons Of Two- And Three-Dimensional Convection In Type I X-Ray Bursts

Abstract

We perform the first detailed three-dimensional simulation of low Mach number convection preceding runaway thermonuclear ignition in a mixed H/He X-ray burst. Our simulations include a moderate-sized, approximate network that captures hydrogen and helium burning up through rp-process breakout. We look at the difference between two- and three-dimensional convective fields, including the details of the turbulent convection.

Authors:
 [1];  [2];  [3];  [3];  [3]
  1. Stony Brook Univ., NY (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory, Oak Ridge Leadership Computing Facility (OLCF); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1239286
Alternate Identifier(s):
OSTI ID: 1329862
Report Number(s):
LA-UR-14-28135; LA-UR-15-23992
Journal ID: ISSN 1538-4357
Grant/Contract Number:  
AC52-06NA25396; FG02- 06ER41448; FG02-87ER40317; AC02-05CH11231; AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal (Online)
Additional Journal Information:
Journal Name: The Astrophysical Journal (Online); Journal Volume: 807; Journal Issue: 1; Journal ID: ISSN 1538-4357
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; convection; hydrodynamics; numerical methods; neutron stars; X-ray bursts; Astronomy and Astrophysics; methods: numerical; stars: neutron; X-rays: bursts

Citation Formats

Zingale, M., Malone, C. M., Nonaka, A., Almgren, A. S., and Bell, J. B. Comparisons Of Two- And Three-Dimensional Convection In Type I X-Ray Bursts. United States: N. p., 2015. Web. doi:10.1088/0004-637X/807/1/60.
Zingale, M., Malone, C. M., Nonaka, A., Almgren, A. S., & Bell, J. B. Comparisons Of Two- And Three-Dimensional Convection In Type I X-Ray Bursts. United States. doi:10.1088/0004-637X/807/1/60.
Zingale, M., Malone, C. M., Nonaka, A., Almgren, A. S., and Bell, J. B. Wed . "Comparisons Of Two- And Three-Dimensional Convection In Type I X-Ray Bursts". United States. doi:10.1088/0004-637X/807/1/60. https://www.osti.gov/servlets/purl/1239286.
@article{osti_1239286,
title = {Comparisons Of Two- And Three-Dimensional Convection In Type I X-Ray Bursts},
author = {Zingale, M. and Malone, C. M. and Nonaka, A. and Almgren, A. S. and Bell, J. B.},
abstractNote = {We perform the first detailed three-dimensional simulation of low Mach number convection preceding runaway thermonuclear ignition in a mixed H/He X-ray burst. Our simulations include a moderate-sized, approximate network that captures hydrogen and helium burning up through rp-process breakout. We look at the difference between two- and three-dimensional convective fields, including the details of the turbulent convection.},
doi = {10.1088/0004-637X/807/1/60},
journal = {The Astrophysical Journal (Online)},
number = 1,
volume = 807,
place = {United States},
year = {2015},
month = {7}
}

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Cited by: 4 works
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