624 citations · 2.8k across the 38 of their papers we have counts for
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Impacts of the direct URCA and Superfluidity inside a Neutron Star on Type-I X-Ray Bursts and X-Ray Superbursts
Akira Dohi, Nobuya Nishimura, Hajime Sotani +4
We investigate the impacts of neutrino cooling mechanism inside the neutron star (NS) core on the light curves of type-I X-ray bursts and X-ray superbursts. From several observatio…
Impact of Uncertainties in Astrophysical Reaction Rates on Nucleosynthesis in the Process
T. Rauscher, N. Nishimura, G. Cescutti +3
The process appears in proton-rich, hot matter which is expanding in a neutrino wind and may be realised in explosive environments such as core-collapse supernovae or in outfl…
Impact of Uncertainties in Nuclear Reaction Cross Sections on p-Nucleosynthesis in Thermonuclear Supernovae
T. Rauscher, N. Nishimura, G. Cescutti +3
The propagation of uncertainties in reaction cross sections and rates of neutron-, proton-, and alpha-induced reactions into the final isotopic abundances obtained in nucleosynthes…
Uncertainties in the production of p nuclides in SN Ia determined by Monte Carlo variations
T. Rauscher, N. Nishimura, R. Hirschi +3
Several thousand tracers from a 2D model of a thermonuclear supernova were used in a Monte Carlo post-processing approach to determine p-nuclide abundance uncertainties originating…
Mass Ejection from the Remnant of a Binary Neutron Star Merger: Viscous-Radiation Hydrodynamics Study
Sho Fujibayashi, Kenta Kiuchi, Nobuya Nishimura +2
We perform long-term general relativistic neutrino radiation hydrodynamics simulations (in axisymmetry) for a massive neutron star (MNS) surrounded by a torus, which is a canonical…
The intermediate r-process in core-collapse supernovae driven by the magneto-rotational instability
Nobuya Nishimura, Hidetomo Sawai, Tomoya Takiwaki +2
We investigated r-process nucleosynthesis in magneto-rotational supernovae, based on a new explosion mechanism induced by the magneto-rotational instability. A series of axisymmetr…
Production Uncertainties of p-Nuclei in the -Process in Massive Stars Using a Monte Carlo Approach
T. Rauscher, N. Nishimura, R. Hirschi +3
Proton-rich nuclei, the so-called p-nuclei, are made in photodisintegration processes in outer shells of massive stars in the course of the final supernova explosion. Nuclear uncer…
Uncertainties in the production of nuclei in massive stars obtained from Monte Carlo variations
T. Rauscher, N. Nishimura, R. Hirschi +3
Nuclear uncertainties in the production of nuclei in massive stars have been quantified in a Monte Carlo procedure. Bespoke temperature-dependent uncertainties were assigned to…
Impact of the first-forbidden decay on the production of r-process peak
Nobuya Nishimura, Zsolt Podolyák, Dong-Liang Fang +1
We investigated the effects of first-forbidden transitions in decays on the production of the r-process peak. The theoretical calculated -decay rates with -d…
Theory Considerations For Nucleosynthesis Beyond Fe With Special Emphasis On p-Nuclei In Massive Stars
T. Rauscher, N. Nishimura, R. Hirschi
Nucleosynthesis of heavy elements requires the use of different experimental and theoretical methods to determine astrophysical reaction rates than light element nucleosynthesis. A…
Production of 92Nb, 92Mo, and 146Sm in the gamma-process in SNIa
T. Rauscher, C. Travaglio, R. Gallino +2
The knowledge of the production of extinct radioactivities like 92Nb and 146Sm by photodisintegration processes in ccSN and SNIa models is essential for interpreting abundances in…
Revisiting Impacts of Nuclear Burning for Reviving Weak Shocks in Neutrino-Driven Supernovae
Ko Nakamura, Tomoya Takiwaki, Kei Kotake +1
We revisit potential impacts of nuclear burning on the onset of the neutrino-driven explosions of core-collapse supernovae. By changing the neutrino luminosity and its decay time t…
Nucleosynthesis in core-collapse supernova explosions triggered by a quark-hadron phase transition
Nobuya Nishimura, Tobias Fischer, Friedrich-Karl Thielemann +7
We explore heavy element nucleosynthesis in the explosion of massive stars which are triggered by a quark-hadron phase transition during the early post bounce phase of core-collaps…