Dynamics of shock propagation and nucleosynthesis conditions in O-Ne-Mg core supernovae

Abstract

It has been recently proposed that the shocked surface layers of exploding O-Ne-Mg cores provide the conditions for r-process nucleosynthesis, because their rapid expansion and high entropies enable heavy r-process isotopes to form even in an environment with very low initial neutron excess of the matter. We show here that the most sophisticated available hydrodynamic simulations (in spherical and axial symmetry) do not support this new r-process scenario because they fail to provide the necessary conditions of temperature, entropy, and expansion timescale by significant factors. This suggests that, either the formation of r-process elements works differently than suggested by Ning et al. (2007, NQM07), or that some essential core properties with influence on the explosion dynamics might be different from those predicted by Nomoto's progenitor model.

arXiv comment10 pages, 11 figures; accepted by Astronomy & Astrophysics; significantly extended to account for referee's suggestions and questions

References in corpus (26)

• Nucleosynthesis in neutrino-driven winds: I. The physical conditions
• Explosions of O-Ne-Mg Cores, the Crab Supernova, and Subluminous Type II-P Supernovae
• Two-dimensional hydrodynamic core-collapse supernova simulations with spectral neutrino transport. I. Numerical method and results for a 15 M_sun star
• Radiation hydrodynamics with neutrinos: Variable Eddington factor method for core-collapse supernova simulations
• A New Mechanism for Core-Collapse Supernova Explosions
• Where, oh where has the r-process gone?
• The Physics of Protoneutron Star Winds: Implications for r-Process Nucleosynthesis
• Electron capture rates on nuclei and implications for stellar core collapse
• Exploring the relativistic regime with Newtonian hydrodynamics: An improved effective gravitational potential for supernova simulations
• Multi-Dimensional Simulations of the Accretion-Induced Collapse of White Dwarfs to Neutron Stars
• Nucleosynthesis-relevant conditions in neutrino-driven supernova outflows. I. Spherically symmetric hydrodynamic simulations
• General relativistic effects on neutrino-driven wind from young, hot neutron star and the r-process nucleosynthesis
• Features of the Acoustic Mechanism of Core-Collapse Supernova Explosions
• The r-process in supernova explosions from the collapse of O-Ne-Mg cores
• Enrichment of the r-process Element Europium in the Galactic Halo
• R-Process in Collapsing O/Ne/Mg Cores
• Magnetically-driven explosions of rapidly-rotating white dwarfs following Accretion-Induced Collapse
• Effects of Inelastic Neutrino-Nucleus Scattering on Supernova Dynamics and Radiated Neutrino Spectra
• Stellar Sources for Heavy r-Process Nuclei
• Determination of Nucleosynthetic Yields of Supernovae and Very Massive Stars from Abundances in Metal-Poor Stars
• r-Process in Prompt Supernova Explosions Revisited
• r-Process Nucleosynthesis in Shocked Surface Layers of O-Ne-Mg Cores
• Nucleosynthesis in O-Ne-Mg Supernovae
• Supernova explosions and the birth of neutron stars
• Neutrino-driven explosions twenty years after SN1987A
• Ascertaining the Core Collapse Supernova Mechanism: An Emerging Picture?

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• The Landscape of the Neutrino Mechanism of Core-Collapse Supernovae: Neutron Star and Black Hole Mass Functions, Explosion Energies and Nickel Yields
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• Multimessengers from core-collapse supernovae: multidimensionality as a key to bridge theory and observation
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• Constraints on explosive silicon burning in core-collapse supernovae from measured Ni/Fe ratios
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• Enrichment of Zinc in galactic chemodynamical evolution models
• Three-Dimensional Explosion Geometry of Stripped-Envelope Core-Collapse Supernovae. II. Modelling of Polarization
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• Explosive nucleosynthesis of ultra-stripped Type Ic supernovae: application to light trans-iron elements
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• Synthesis of radioactive elements in novae and supernovae and their use as a diagnostic tool
• Drawing the line between explosion and collapse in electron-capture supernovae -- I. Impact of conductive flame speeds and ignition conditions on the explosion mechanism
• Radiative neutron capture reaction rates for r-process nucleosynthesis
• Neutrino cooling rates due to nickel isotopes for presupernova evolution of massive stars
• Electron-capture Supernova Candidates from Light Curves: Implications for Their Progenitors and Explosion Properties
• Four-hundred Very Metal-poor Stars Studied with LAMOST and Subaru. IV. Heavy Element Enhanced Stars