The effects of general relativity on core collapse supernovae Metadata

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Title

  • Main Title The effects of general relativity on core collapse supernovae

Creator

  • Author: De Nisco, K. R.
    Creator Type: Personal
  • Author: Bruenn, S. W.
    Creator Type: Personal
    Creator Info: Florida Atlantic Univ., Boca Raton, FL (United States). Physics Dept.
  • Author: Mezzacappa, A.
    Creator Type: Personal
    Creator Info: Oak Ridge National Lab., TN (United States). Physics Div.

Contributor

  • Sponsor: United States. Department of Energy. Office of Energy Research.
    Contributor Type: Organization
    Contributor Info: USDOE Office of Energy Research, Washington, DC (United States)
  • Sponsor: National Science Foundation (U.S.)
    Contributor Type: Organization
    Contributor Info: National Science Foundation, Washington, DC (United States)

Publisher

  • Name: Oak Ridge National Laboratory
    Place of Publication: Tennessee
    Additional Info: Oak Ridge National Lab., TN (United States)

Date

  • Creation: 1997-12-01

Language

  • English

Description

  • Content Description: The effects of general relativity (GR) on the hydrodynamics and neutrino transport are examined during the critical shock reheating phase of core collapse supernovae. The authors find that core collapse computed with GR hydrodynamics results in a substantially more compact core structure out to the shock, the shock radius at stagnation being reduced by a factor of 2. The inflow speed of material behind the shock is also increased by a factor of 2 throughout most of the evolution. They have developed a code for general relativistic multigroup flux-limited diffusion (MGFLD) in static spacetimes and compared the steady-state neutrino distributions for selected time slices of post-bounce models with those computed with Newtonian MGFLD. The GR transport calculations show the expected reductions in neutrino luminosities and rms energies from redshift and curvature effects. Although the effects of GR on the hydrodynamics and neutrino transport seem to work against shock revival, the core configurations are sufficiently different that no firm conclusions can be drawn, except that simulations of core collapse supernovae using Newtonian hydrodynamics and transport are not realistic.
  • Physical Description: 8 p.

Subject

  • Keyword: Star Models
  • Keyword: Supernovae
  • Keyword: Neutrinos
  • STI Subject Categories: 66 Physics
  • Keyword: Hydrodynamics
  • Keyword: Shock Waves
  • Keyword: Radiation Transport
  • Keyword: General Relativity Theory
  • Keyword: R Process

Source

  • Conference: 2. Oak Ridge symposium on atomic and nuclear astrophysics, Oak Ridge, TN (United States), 2-6 Dec 1997

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Other: DE98005657
  • Report No.: ORNL/CP--98112
  • Report No.: CONF-971208--
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 654191
  • Archival Resource Key: ark:/67531/metadc707098

Note

  • Display Note: OSTI as DE98005657
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