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

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:
OSTI Identifier:
1239286
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
Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal
Additional Journal Information:
Journal Volume: 807; Journal Issue: 1; Journal ID: ISSN 1538-4357
Publisher:
Institute of Physics (IOP)
Research Org:
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)
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