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Title: How high energy fluxes may affect Rayleigh–Taylor instability growth in young supernova remnants

Here, energy-transport effects can alter the structure that develops as a supernova evolves into a supernova remnant. The Rayleigh–Taylor instability is thought to produce structure at the interface between the stellar ejecta and the circumstellar matter, based on simple models and hydrodynamic simulations. Here we report experimental results from the National Ignition Facility to explore how large energy fluxes, which are present in supernovae, affect this structure. We observed a reduction in Rayleigh–Taylor growth. In analyzing the comparison with supernova SN1993J, a Type II supernova, we found that the energy fluxes produced by heat conduction appear to be larger than the radiative energy fluxes, and large enough to have dramatic consequences. No reported astrophysical simulations have included radiation and heat conduction self-consistently in modeling supernova remnants and these dynamics should be noted in the understanding of young supernova remnants.
Authors:
 [1] ;  [2] ;  [2] ;  [2] ;  [2] ;  [3] ;  [1] ;  [2] ;  [4] ;  [4] ;  [2] ;  [2] ; ORCiD logo [5] ; ORCiD logo [6] ; ORCiD logo [6] ; ORCiD logo [6] ;  [7] ;  [1] ;  [2] ;  [8] more »;  [1] ;  [9] ;  [2] ;  [10] ;  [1] ;  [2] ;  [8] ; ORCiD logo [1] « less
  1. Univ. of Michigan, Ann Arbor, MI (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. Florida State Univ., Tallahassee, FL (United States)
  4. Ben Gurion Univ. of the Negev, Be'er-Sheva (Israel); Nuclear Research Center Negev, Be'er Sheva (Israel)
  5. Univ. of Michigan, Ann Arbor, MI (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  6. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  7. Univ. of Michigan, Ann Arbor, MI (United States); Nuclear Research Center Negev, Be'er Sheva (Israel)
  8. General Atomics, San Diego, CA (United States)
  9. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  10. Simon Fraser Univ., Burnaby, BC (Canada)
Publication Date:
Report Number(s):
LA-UR-18-22046
Journal ID: ISSN 2041-1723
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 9; Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP) (NA-10)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; Astronomy and planetary science; Laser-produced plasmas
OSTI Identifier:
1435541