scholarly journals On the Neutrino Distributions in Phase Space for the Rotating Core-collapse Supernova Simulated with a Boltzmann-neutrino-radiation-hydrodynamics Code

2019 ◽  
Vol 872 (2) ◽  
pp. 181 ◽  
Author(s):  
Akira Harada ◽  
Hiroki Nagakura ◽  
Wakana Iwakami ◽  
Hirotada Okawa ◽  
Shun Furusawa ◽  
...  
Keyword(s):  
Phase Space ◽  
Radiation Hydrodynamics ◽  
Core Collapse ◽  
Core Collapse Supernova ◽  
Neutrino Radiation

scholarly journals Effects of Small-Scale Fluctuations of Neutrino Flux in Supernova Explosions

2005 ◽  
Vol 192 ◽  
pp. 309-314
Author(s):  
Hideki Madokoro ◽  
Tetsuya Shimizu ◽  
Yuko Motizuki
Keyword(s):  
Neutrino Flux ◽  
Explosion Energy ◽  
Small Scale ◽  
Core Collapse ◽  
Effective Mechanism ◽  
Core Collapse Supernova ◽  
Neutrino Radiation ◽  
Spherical Explosion ◽  
Supernova Explosions ◽  
Neutrino Luminosity

SummaryWe examine effects of small-scale fluctuations with angle in the neutrino radiation in core-collapse supernova explosions. As the mode number of fluctuations increases, the results approach those of spherical explosion. We conclude that global anisotropy of the neutrino radiation is the most effective mechanism of increasing the explosion energy when the total neutrino luminosity is given.

Recent Status of Multi-Dimensional Core-Collapse Supernova Models

2015 ◽  
Vol 11 (A29A) ◽  
pp. 340-344
Author(s):  
Kei Kotake ◽  
Ko Nakamura ◽  
Tomoya Takiwaki
Keyword(s):  
Energy Transport ◽  
Unique Feature ◽  
Three Dimensional ◽  
Radiation Hydrodynamics ◽  
Core Collapse ◽  
Core Collapse Supernova ◽  
Self Consistent ◽  
New Type ◽  
Explosion Mechanism ◽  
Proto Neutron Star

AbstractWe report a recent status of multi-dimensional neutrino-radiation hydrodynamics simulations for clarifying the explosion mechanism of core-collapse supernovae (CCSNe). In this contribution, we present two results, one from two-dimensional (2D) simulations using multiple progenitor models and another from three-dimensional (3D) rotational core-collapse simulation using a single progenitor. From the first ever systematic 2D simulations, it is shown that the compactness parameter ξ that characterizes the structure of the progenitors is a key to diagnose the explodability of neutrino-driven explosions. In the 3D rotating model, we find a new type of rotation-assisted explosion, which makes the explosion energy bigger than that in the non-rotating model. The unique feature has not been captured in previous 2D self-consistent rotational models because the growth of non-axisymmetric instabilities is the key to foster the explosion by enhancing the energy transport from the proto-neutron star to the gain region.

scholarly journals Electron-capture and Low-mass Iron-core-collapse Supernovae: New Neutrino-radiation-hydrodynamics Simulations

2017 ◽  
Vol 850 (1) ◽  
pp. 43 ◽  
Author(s):  
David Radice ◽  
Adam Burrows ◽  
David Vartanyan ◽  
M. Aaron Skinner ◽  
Joshua C. Dolence
Keyword(s):  
Electron Capture ◽  
Iron Core ◽  
Radiation Hydrodynamics ◽  
Core Collapse ◽  
Neutrino Radiation ◽  
Low Mass

scholarly journals Core-Collapse Supernova Simulations including Neutrino Interactions from the Virial EOS

2017 ◽  
Vol 12 (S331) ◽  
pp. 107-112 ◽  
Author(s):  
Evan O’Connor ◽  
C. J. Horowitz ◽  
Zidu Lin ◽  
Sean Couch
Keyword(s):  
Neutral Current ◽  
Radiation Hydrodynamics ◽  
Core Collapse ◽  
Core Collapse Supernova ◽  
Sn 1987A ◽  
Interaction Terms ◽  
Central Engine ◽  
Matter Interaction ◽  
Supernova Explosions ◽  
Protoneutron Star

AbstractCore-collapse supernova explosions are driven by a central engine that converts a small fraction of the gravitational binding energy released during core collapse to outgoing kinetic energy. The suspected mode for this energy conversion is the neutrino mechanism, where a fraction of the neutrinos emitted from the newly formed protoneutron star are absorbed by and heat the matter behind the supernova shock. Accurate neutrino-matter interaction terms are crucial for simulating these explosions. In this proceedings for IAUS 331, SN 1987A, 30 years later, we explore several corrections to the neutrino-nucleon scattering opacity and demonstrate the effect on the dynamics of the core-collapse supernova central engine via two dimensional neutrino-radiation-hydrodynamics simulations. Our results reveal that the explosion properties are sensitive to corrections to the neutral-current scattering cross section at the 10-20% level, but only for densities at or above ~1012 g cm−3.

scholarly journals Two‐dimensional, Time‐dependent, Multigroup, Multiangle Radiation Hydrodynamics Test Simulation in the Core‐Collapse Supernova Context

2004 ◽  
Vol 609 (1) ◽  
pp. 277-287 ◽  
Author(s):  
Eli Livne ◽  
Adam Burrows ◽  
Rolf Walder ◽  
Itamar Lichtenstadt ◽  
Todd A. Thompson
Keyword(s):  
Time Dependent ◽  
Radiation Hydrodynamics ◽  
Core Collapse ◽  
Two Dimensional ◽  
Core Collapse Supernova ◽  
The Core

scholarly journals GENERAL-RELATIVISTIC THREE-DIMENSIONAL MULTI-GROUP NEUTRINO RADIATION-HYDRODYNAMICS SIMULATIONS OF CORE-COLLAPSE SUPERNOVAE

2016 ◽  
Vol 831 (1) ◽  
pp. 98 ◽  
Author(s):  
Luke F. Roberts ◽  
Christian D. Ott ◽  
Roland Haas ◽  
Evan P. O’Connor ◽  
Peter Diener ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Radiation Hydrodynamics ◽  
Core Collapse ◽  
Neutrino Radiation ◽  
General Relativistic

scholarly journals Cutting-edge issues in core-collapse supernova theory

2011 ◽  
Vol 7 (S279) ◽  
pp. 126-133
Author(s):  
Kei Kotake
Keyword(s):  
General Relativity ◽  
First Generation ◽  
Three Dimensional ◽  
Cutting Edge ◽  
Core Collapse ◽  
Hydrodynamic Simulations ◽  
3D Simulations ◽  
Core Collapse Supernova ◽  
Neutrino Radiation ◽  
Explosion Mechanism

AbstractBased on our multi-dimensional neutrino-radiation hydrodynamic simulations, we report several cutting-edge issues about the long-veiled explosion mechanism of core-collapse supernovae (CCSNe). In this contribution, we pay particular attention to whether three-dimensional (3D) hydrodynamics and/or general relativity (GR) would or would not help the onset of explosions. Our results from the first generation of full GR 3D simulations including approximate neutrino transport are quite optimistic, indicating that both of the two ingredients can foster neutrino-driven explosions. We give an outlook with a summary of the most urgent tasks to draw a robust conclusion to our findings.

scholarly journals Deep learning for core-collapse supernova detection

2021 ◽  
Vol 103 (6) ◽  
Author(s):  
M. López ◽  
I. Di Palma ◽  
M. Drago ◽  
P. Cerdá-Durán ◽  
F. Ricci
Keyword(s):  
Deep Learning ◽  
Core Collapse ◽  
Core Collapse Supernova
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