On the Neutrino Distributions in Phase Space for the Rotating Core-collapse Supernova Simulated with a Boltzmann-neutrino-radiation-hydrodynamics Code
Abstract
With the Boltzmann-radiation-hydrodynamics code, which we have developed to solve numerically the Boltzmann equations for neutrino transfer, the Newtonian hydrodynamics equations, and the Newtonian self-gravity simultaneously and consistently, in this work we simulate the collapse of a rotating core of the progenitor with a zero-age- main-sequence mass of 11.2 M⊙ and a shellular rotation of $$1\,\mathrm{rad}\,{{\rm{s}}}^{-1}$$ at the center. We pay particular attention in this paper to the neutrino distribution in phase space, which is affected by the rotation. By solving the Boltzmann equations directly, we can assess the rotation-induced distortion of the angular distribution in momentum space, which gives rise to the rotational component of the neutrino flux. We compare the Eddington tensors calculated both from the raw data and from the M1-closure approximation. We demonstrate that the Eddington tensor is determined by complicated interplays of the fluid velocity and the neutrino interactions and that the M1-closure, which assumes that the Eddington factor is determined by the flux factor, fails to fully capture this aspect, especially in the vicinity of the shock. We find that the error in the Eddington factor reaches ~20% in our simulation. This is due not to the resolution but to the different dependence of the Eddington and flux factors on the angular profile of the neutrino distribution function, and hence modification to the closure relation is needed.
- Authors:
-
- Univ. of Tokyo (Japan)
- Princeton Univ., NJ (United States); California Inst. of Technology (CalTech), Pasadena, CA (United States)
- Kyoto Univ. (Japan); Waseda Univ., Tokyo (Japan)
- RIKEN, Saitama (Japan). Interdisciplinary Theoretical and Mathematical Sciences Program (iTHEMS)
- High Energy Accelerator Research Organization, Ibaraki (Japan)
- Numazu College of Technology (Japan)
- Waseda Univ., Tokyo (Japan)
- Publication Date:
- Research Org.:
- Univ. of California, Oakland, CA (United States)
- Sponsoring Org.:
- Ministry of Education, Culture, Sports, Science and Technology (MEXT); Japan Society for the Promotion of Science (JSPS); National Science Foundation (NSF); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR). Scientific Discovery through Advanced Computing (SciDAC)
- OSTI Identifier:
- 1612911
- Grant/Contract Number:
- SC0018297; 26104006; 15K05093; 16H03986; 24103006; 17H06357; 17H06365; JP17J04422; TCAN AST-1333520
- Resource Type:
- Accepted Manuscript
- Journal Name:
- The Astrophysical Journal (Online)
- Additional Journal Information:
- Journal Name: The Astrophysical Journal (Online); Journal Volume: 872; Journal Issue: 2; Journal ID: ISSN 1538-4357
- Publisher:
- Institute of Physics (IOP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; astronomy & astrophysics; methods: numerical; neutrinos; radiative transfer; shock waves; supernovae: general
Citation Formats
Harada, Akira, Nagakura, Hiroki, Iwakami, Wakana, Okawa, Hirotada, Furusawa, Shun, Matsufuru, Hideo, Sumiyoshi, Kohsuke, and Yamada, Shoichi. On the Neutrino Distributions in Phase Space for the Rotating Core-collapse Supernova Simulated with a Boltzmann-neutrino-radiation-hydrodynamics Code. United States: N. p., 2019.
Web. doi:10.3847/1538-4357/ab0203.
Harada, Akira, Nagakura, Hiroki, Iwakami, Wakana, Okawa, Hirotada, Furusawa, Shun, Matsufuru, Hideo, Sumiyoshi, Kohsuke, & Yamada, Shoichi. On the Neutrino Distributions in Phase Space for the Rotating Core-collapse Supernova Simulated with a Boltzmann-neutrino-radiation-hydrodynamics Code. United States. https://doi.org/10.3847/1538-4357/ab0203
Harada, Akira, Nagakura, Hiroki, Iwakami, Wakana, Okawa, Hirotada, Furusawa, Shun, Matsufuru, Hideo, Sumiyoshi, Kohsuke, and Yamada, Shoichi. Mon .
"On the Neutrino Distributions in Phase Space for the Rotating Core-collapse Supernova Simulated with a Boltzmann-neutrino-radiation-hydrodynamics Code". United States. https://doi.org/10.3847/1538-4357/ab0203. https://www.osti.gov/servlets/purl/1612911.
@article{osti_1612911,
title = {On the Neutrino Distributions in Phase Space for the Rotating Core-collapse Supernova Simulated with a Boltzmann-neutrino-radiation-hydrodynamics Code},
author = {Harada, Akira and Nagakura, Hiroki and Iwakami, Wakana and Okawa, Hirotada and Furusawa, Shun and Matsufuru, Hideo and Sumiyoshi, Kohsuke and Yamada, Shoichi},
abstractNote = {With the Boltzmann-radiation-hydrodynamics code, which we have developed to solve numerically the Boltzmann equations for neutrino transfer, the Newtonian hydrodynamics equations, and the Newtonian self-gravity simultaneously and consistently, in this work we simulate the collapse of a rotating core of the progenitor with a zero-age- main-sequence mass of 11.2 M⊙ and a shellular rotation of $1\,\mathrm{rad}\,{{\rm{s}}}^{-1}$ at the center. We pay particular attention in this paper to the neutrino distribution in phase space, which is affected by the rotation. By solving the Boltzmann equations directly, we can assess the rotation-induced distortion of the angular distribution in momentum space, which gives rise to the rotational component of the neutrino flux. We compare the Eddington tensors calculated both from the raw data and from the M1-closure approximation. We demonstrate that the Eddington tensor is determined by complicated interplays of the fluid velocity and the neutrino interactions and that the M1-closure, which assumes that the Eddington factor is determined by the flux factor, fails to fully capture this aspect, especially in the vicinity of the shock. We find that the error in the Eddington factor reaches ~20% in our simulation. This is due not to the resolution but to the different dependence of the Eddington and flux factors on the angular profile of the neutrino distribution function, and hence modification to the closure relation is needed.},
doi = {10.3847/1538-4357/ab0203},
journal = {The Astrophysical Journal (Online)},
number = 2,
volume = 872,
place = {United States},
year = {Mon Feb 25 00:00:00 EST 2019},
month = {Mon Feb 25 00:00:00 EST 2019}
}
Web of Science
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Works referencing / citing this record:
Fast-pairwise Collective Neutrino Oscillations Associated with Asymmetric Neutrino Emissions in Core-collapse Supernovae
journal, November 2019
- Nagakura, Hiroki; Morinaga, Taiki; Kato, Chinami
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Three-dimensional Boltzmann-hydro Code for Core-collapse in Massive Stars. III. A New Method for Momentum Feedback from Neutrino to Matter
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- Nagakura, Hiroki; Sumiyoshi, Kohsuke; Yamada, Shoichi
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Long-term simulations of multi-dimensional core-collapse supernovae: Implications for neutron star kicks
journal, August 2019
- Nakamura, Ko; Takiwaki, Tomoya; Kotake, Kei
- Publications of the Astronomical Society of Japan, Vol. 71, Issue 5
One-, Two-, and Three-dimensional Simulations of Oxygen-shell Burning Just before the Core Collapse of Massive Stars
journal, August 2019
- Yoshida, Takashi; Takiwaki, Tomoya; Kotake, Kei
- The Astrophysical Journal, Vol. 881, Issue 1
One-, Two-, and Three-dimensional Simulations of Oxygen Shell Burning Just Before the Core-Collapse of Massive Stars
text, January 2019
- Yoshida, Takashi; Takiwaki, Tomoya; Kotake, Kei
- arXiv
Long-term Simulations of Multi-Dimensional Core-collapse Supernovae: Implications for Neutron Star Kicks
text, January 2019
- Nakamura, Ko; Takiwaki, Tomoya; Kotake, Kei
- arXiv