Matter Mixing in Core-collapse Supernova Ejecta: Large Density Perturbations in the Progenitor Star?

@article{Mao2015MatterMI,
  title={Matter Mixing in Core-collapse Supernova Ejecta: Large Density Perturbations in the Progenitor Star?},
  author={Jirong Mao and Masaomi Ono and Shigehiro Nagataki and M. Hashimoto and H. Ito and Jin Matsumoto and Maria Giovanna Dainotti and S.-H. Lee},
  journal={arXiv: High Energy Astrophysical Phenomena},
  year={2015}
}
  • J. Mao, M. Ono, +5 authors S. Lee
  • Published 25 July 2015
  • Physics
  • arXiv: High Energy Astrophysical Phenomena
Matter mixing is one important topic in the study of core-collapse supernova (CCSN) explosions. In this paper, we perform two-dimensional hydrodynamic simulations to reproduce the high velocity $^{56}$Ni clumps observed in SN 1987A. This is the first time that large density perturbation is proposed in the CCSN progenitor to generate Rayleigh-Taylor (RT) instability and make the effective matter mixing. In the case of a spherical explosion, RT instability is efficient at both C+O/He and He/H… Expand
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References

SHOWING 1-10 OF 97 REFERENCES
MATTER MIXING IN ASPHERICAL CORE-COLLAPSE SUPERNOVAE: A SEARCH FOR POSSIBLE CONDITIONS FOR CONVEYING 56Ni INTO HIGH VELOCITY REGIONS
We perform two-dimensional axisymmetric hydrodynamic simulations of matter mixing in aspherical core-collapse supernova explosions of a 16.3 M ☉ star with a compact hydrogen envelope. Observations ofExpand
Toward Connecting Core-collapse Supernova Theory with Observations. I. Shock Revival in a 15 M ? Blue Supergiant Progenitor with SN 1987A Energetics
We study the evolution of the collapsing core of a 15 M {sub ☉} blue supergiant supernova progenitor from the core bounce until 1.5 s later. We present a sample of hydrodynamic models parameterizedExpand
Non-spherical core collapse supernovae - II. The late-time evolution of globally anisotropic neutrino-driven explosions and their implications for SN 1987 A
Two-dimensional simulations of strongly anisotropic supernova explosions of a nonrotating $15\,M_{\odot}$ blue supergiant progenitor are presented, which follow the hydrodynamic evolution from timesExpand
Non-spherical core collapse supernovae. I. Neutrino-driven convection, Rayleigh-Taylor instabilities, and the formation and propagation of metal clumps
We have performed two-dimensional simulations of core collapse supernovae that encompass shock revival by neutrino heating, neutrino-driven convection, explosive nucleosynthesis, the growth ofExpand
New Two-dimensional Models of Supernova Explosions by the Neutrino-heating Mechanism: Evidence for Different Instability Regimes in Collapsing Stellar Cores
The neutrino-driven explosion mechanism for core-collapse supernovae in its modern flavor relies on the additional support of hydrodynamical instabilities in achieving shock revival. Two possibleExpand
Three-dimensional simulations of core-collapse supernovae: from shock revival to shock breakout
We present 3D simulations of core-collapse supernovae from blast-wave initiation by the neutrino-driven mechanism to shock breakout from the stellar surface, considering two 15 Msun red supergiantsExpand
Three-dimensional Simulations of Mixing Instabilities in Supernova Explosions
We present the first three-dimensional (3D) simulations of the large-scale mixing that takes place in the shock-heated stellar layers ejected in the explosion of a 15.5 M ? blue supergiant star. TheExpand
On the nature of core-collapse supernova explosions
We investigate in this paper the core-collapse supernova explosion mechanism in both one and two dimensions. We verify the usefulness of neutrino-driven overturn (``convection'') between the shockExpand
THREE-DIMENSIONAL SIMULATIONS OF RAYLEIGH-TAYLOR MIXING IN CORE-COLLAPSE SUPERNOVAE
We present multidimensional simulations of the post-explosion hydrodynamics in three different 15 M{sub sun} supernova models with zero, 10{sup -4} Z{sub sun}, and Z{sub sun} metallicities. We followExpand
Non-spherical core collapse supernovae III. Evolution towards homology and dependence on the numerical resolution
(abridged) We study the hydrodynamic evolution of a non-spherical core-collapse supernova in two spatial dimensions. We find that our model displays a strong tendency to expand toward the pole. WeExpand
...
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2
3
4
5
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