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  Ultra-delayed neutrino-driven explosion of rotating massive-star collapse

Fujibayashi, S., Takahashi, K., Sekiguchi, Y., & Shibata, M. (2021). Ultra-delayed neutrino-driven explosion of rotating massive-star collapse. The Astrophysical Journal, 919(2): 80. doi:10.3847/1538-4357/ac10cb.

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 Creators:
Fujibayashi, Sho1, Author              
Takahashi, Koh1, Author              
Sekiguchi , Yuichiro, Author
Shibata, Masaru1, Author              
Affiliations:
1Computational Relativistic Astrophysics, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_2541714              

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Free keywords: Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE
 Abstract: Long-term neutrino-radiation hydrodynamics simulations in full general relativity are performed for the collapse of rotating massive stars that are evolved from He-stars with their initial mass of $20$ and $32M_\odot$. It is shown that if the collapsing stellar core has sufficient angular momentum, the rotationally-supported proto-neutron star (PNS) survives for seconds accompanying the formation of a massive torus of mass larger than $1\,M_\odot$. Subsequent mass accretion onto the central region produces a massive and compact central object, and eventually enhances the neutrino luminosity beyond $10^{53}$\,erg/s, resulting in a very delayed neutrino-driven explosion in particular toward the polar direction. The kinetic energy of the explosion can be appreciably higher than $10^{52}$ erg for a massive progenitor star and compatible with that of energetic supernovae like broad-line type-Ic supernovae. By the subsequent accretion, the massive PNS collapses eventually into a rapidly spinning black hole, which could be a central engine for gamma-ray bursts if a massive torus surrounds it.

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 Dates: 2021-02-082021-06-112021
 Publication Status: Published in print
 Pages: 12 pages, 5 figures, accepted for publication in ApJ
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 Table of Contents: -
 Rev. Type: -
 Identifiers: arXiv: 2102.04467
DOI: 10.3847/1538-4357/ac10cb
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Title: The Astrophysical Journal
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Pages: - Volume / Issue: 919 (2) Sequence Number: 80 Start / End Page: - Identifier: -