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Nobuya Nishimura
Researcher at Yukawa Institute for Theoretical Physics
Publications - 55
Citations - 2812
Nobuya Nishimura is an academic researcher from Yukawa Institute for Theoretical Physics. The author has contributed to research in topics: Nucleosynthesis & r-process. The author has an hindex of 19, co-authored 48 publications receiving 2406 citations. Previous affiliations of Nobuya Nishimura include Kyushu University & University of Basel.
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Production of all the r-process nuclides in the dynamical ejecta of neutron star mergers
Shinya Wanajo,Yuichiro Sekiguchi,Nobuya Nishimura,Kenta Kiuchi,Koutarou Kyutoku,Masaru Shibata +5 more
TL;DR: In this article, the authors present the result of nucleosynthesis calculations based on the fully general relativistic simulation of a binary neutron star (NS-NS) merger with approximate neutrino transport.
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MAGNETOROTATIONALLY DRIVEN SUPERNOVAE AS THE ORIGIN OF EARLY GALAXY r-PROCESS ELEMENTS?
C. Winteler,Roger Käppeli,Albino Perego,Almudena Arcones,Nicolas Vasset,Nobuya Nishimura,Matthias Liebendörfer,Friedrich-Karl Thielemann +7 more
TL;DR: In this paper, the authors examined magnetorotationally driven supernovae as sources of r-process elements in the early Galaxy and found that the peak distribution of Ye in the ejecta is shifted from 0.15 to 0.17 and broadened toward higher Ye due to neutrino absorption.
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Magnetorotationally driven Supernovae as the origin of early galaxy $r$-process elements?
C. Winteler,Roger Kaeppeli,Albino Perego,Almudena Arcones,Nicolas Vasset,Nobuya Nishimura,M. Liebendoerfer,Friedrich-Karl Thielemann +7 more
TL;DR: In this article, the authors examined magnetorotationally driven supernovae as sources of $r$-process elements in the early Galaxy and found that the peak distribution of $Y_{e}$ in the ejecta is shifted from 0.15$ to 0.17$ and broadened toward higher values due to neutrino absorption.
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THE r-PROCESS NUCLEOSYNTHESIS IN THE VARIOUS JET-LIKE EXPLOSIONS OF MAGNETOROTATIONAL CORE-COLLAPSE SUPERNOVAE
TL;DR: In this paper, the r-process nucleosynthesis in core-collapse supernovae (CC-SNe) is studied, with a focus on the explosion scenario induced by rotation and strong magnetic fields.
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Mass Ejection from the Remnant of a Binary Neutron Star Merger: Viscous-radiation Hydrodynamics Study
Sho Fujibayashi,Kenta Kiuchi,Nobuya Nishimura,Yuichiro Sekiguchi,Yuichiro Sekiguchi,Masaru Shibata +5 more
TL;DR: In this article, the effects of viscosity, which is likely to arise in the merger remnant due to magnetohydrodynamical turbulence, were considered for a massive neutron star surrounded by a torus, which was a canonical remnant formed after the binary neutron star merger.