Ion-Ion Correlation Effect on the Neutrino-Nucleus Scattering in Supernova Cores

  title={Ion-Ion Correlation Effect on the Neutrino-Nucleus Scattering in Supernova Cores},
  author={Naoki Itoh and Ryohei Asahara and Nami Tomizawa and Shinya Wanajo and Satoshi Nozawa},
  journal={The Astrophysical Journal},
We calculate the ion-ion correlation effect on the neutrino-nucleus scattering in supernova cores, which is an important opacity source for the neutrinos and plays a vital role in supernova explosions. In order to calculate the ion-ion correlation effect we use the results of the improved hypernetted-chain-method calculations of the classical one-component plasma. As in the preceding studies on this effect, we find a dramatic decrease of the effective neutrino-nucleus scattering cross section… 

Figures from this paper

On ion-ion correlation effects during stellar core collapse
The role of ion-ion correlations in suppressing neutrino-nucleus elastic scattering during stellar core collapse is reinvestigated, using two different equations of state. We test the improved
Interplay of Neutrino Opacities in Core-collapse Supernova Simulations
We have conducted a series of numerical experiments using spherically symmetric, general relativistic, neutrino radiation hydrodynamics with the code Agile-BOLTZTRAN to examine the effects of modern
Effects of ion and electron correlations on neutrino scattering in the infall phase of a supernova
Abstract Many authors have used one-component plasma simulations in discussing the role of ion–ion correlations in reducing neutrino opacities during the collapse phase of a supernova. In a
Nuclear pasta in hot dense matter and its implications for neutrino scattering
We find that the abundance of large clusters of nucleons in neutron-rich matter at sub-nuclear density is greatly reduced by finite temperature effects when matter is close to beta-equilibrium. Large
GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS Perturbation Effects of Ion Screening to Leptons in Type-II Supernova
Based on the new progenitor stars model, the influence of ion screening is investigated. The simulation results show that ion screening has weak perturbation effects to the leptons in type-II
We present the first two-dimensional general relativistic (GR) simulations of stellar core collapse and explosion with the CoCoNuT hydrodynamics code in combination with the Vertex solver for
Explosion mechanism, neutrino burst and gravitational wave in core-collapse supernovae
Core-collapse supernovae are among the most energetic explosions in the universe marking the catastrophic end of massive stars. In spite of rigorous studies for several decades, we still do not
Topics in Core-Collapse Supernova Theory: The Formation of Black Holes and the Transport of Neutrinos
Core-Collapse Supernovae are one of the most complex astrophysical systems in the universe. They deeply entwine aspects of physics and astrophysics that are rarely side by side in nature. To
Theory of core-collapse supernovae
Advances in our understanding and the modeling of stellar core-collapse and supernova explosions over the past 15 years are reviewed, concentrating on the evolution of hydrodynamical simulations, the
Supernova simulations with Boltzmann neutrino transport: a comparison of methods
Accurate neutrino transport has been built into spherically symmetric simulations of stellar core collapse and postbounce evolution. The results of such simulations agree that spherically symmetric


Ion screening effects and stellar collapse
During the collapse of a massive star{close_quote}s stellar core Coulomb effects maintain the ions in a highly correlated state. This has an important consequence: Neutrino-nucleus elastic
Neutrino trapping in a supernova and the screening of weak neutral currents
Neutrino-nucleus elastic scattering is reduced in dense matter because of correlations. The static structure factor for a plasma of electrons and ions is calculated from Monte Carlo simulations and
Coherent effects of a weak neutral current
If there is a weak neutral current, then the elastic scattering process &+A &+A should have a sharp coherent forward peak just as e+A -e+A does. Experiments to observe this peak can give important
Transport properties of dense matter
Transport properties of stellar matter are important ingredients in understanding stellar evolution and stellar structure. Using theoretical techniques that have proven useful in solid state physics,
Screening Corrections to the Electron Capture Rates in Dense Stars by the Relativistically Degenerate Electron Liquid
We calculate the screening corrections to the electron capture rates in dense stars by the relativistically degenerate electron liquid. In order to calculate the screening corrections we adopt the
Statistical Mechanics of Dense Ionized Matter. I. Equilibrium Properties of the Classical One-Component Plasma
The equilibrium properties of a classical one-component plasma, in a uniform background of opposite charge, are computed for systems of various sizes by the Monte Carlo method of Metropolis et al.
Statistical physics of dense plasmas: Thermodynamics, transport coefficients and dynamic correlations
Abstract We review the current status of the theoretical developments in the study of the interparticle correlations in dense plasmas and the transport and elementary processes. The specific features
Enhancement of Resonant Thermonuclear Reaction Rates in Extremely Dense Stellar Plasmas
The enhancement factor of resonant thermonuclear reaction rates is calculated for extremely dense stellar plasmas in the liquid phase. In order to calculate the enhancement factor we use the
Strongly coupled plasmas: high-density classical plasmas and degenerate electron liquids
Classical and degenerate, strongly coupled plasmas are approached by computer simulations, analytic theories, and variational methods. Thermodynamic properties predicted in those various approaches
A numerical model for stellar core collapse calculations
A method for calculating stellar core collapse is discussed which emphasizes physical approximations and numerical methods. Collapse is modeled in terms of hydrodynamics coupled to radiation