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Related papers: Nucleosynthesis in thermonuclear supernovae with t…

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In the work, we derive novel hydrodynamic force models to describe the interaction of a flow with particles in an assembly when only an averaged resolution of the flow is available. These force models are able to predict the average drag on…

Fluid Dynamics · Physics 2024-05-03 Berend van Wachem , Hani Elmestikawy , Victor Chéron

We illustrate methods for deriving properties of thermonuclear, or Type Ia, supernovae, including synthesized $^{56}$Ni mass, total ejecta mass, ejecta kinetic energy, and $^{56}$Ni distribution in velocity, from gamma-ray line…

High Energy Astrophysical Phenomena · Physics 2022-06-22 Mark D. Leising

We present nucleosynthesis studies based on hydrodynamical simulations of core-collapse supernovae and their subsequent neutrino-driven winds. Although the conditions found in these simulations are not suitable for the rapid neutron capture…

Solar and Stellar Astrophysics · Physics 2010-12-15 A. Arcones , G. Martinez-Pinedo

We present a self-consistency analysis of fission product yield evaluations. Anomalous yields are determined using a series of simple conservation checks and comparing charge distributions with common parameterizations. The total prompt…

Nuclear Theory · Physics 2017-09-06 Patrick Jaffke

Within a dynamical and statistical approach we study the main regularities in production of hypernuclei coming from projectile and target residues in relativistic ion collisions. We demonstrate that yields of hypernuclei increase…

Nuclear Theory · Physics 2015-06-16 A. S. Botvina , K. K. Gudima , J. Pochodzalla

Background: Proton elastic scattering at intermediate energy is widely employed as a tool for determining the matter radius of atomic nuclei. The sensitivity of the approach relies on high-resolution measurements at small scattering angles…

Nuclear Theory · Physics 2025-07-22 J. C. Zamora

The microscopic approach of fission rates and neutron emission rates in compound nuclei have been applied to $^{258}$No and $^{286}$Cn. The microscopic framework is based on the finite-temperature Skyrme-Hartree-Fock+BCS calculations, in…

Nuclear Theory · Physics 2017-10-25 Yi Zhu , Junchen Pei

We apply for the first time fission yields determined across the chart of nuclides from the macroscopic-microscopic theory of the Finite Range Liquid Drop Model to simulations of rapid neutron capture ($r$-process) nucleosynthesis. With the…

High Energy Astrophysical Phenomena · Physics 2020-06-22 Nicole Vassh , Matthew R. Mumpower , Gail C. McLaughlin , Trevor M. Sprouse , Rebecca Surman

Explosions of type Ic supernovae (SNe Ic) are investigated using a relativistic hydrodynamic code to study roles of their outermost layers of the ejecta in light element nucleosynthesis through spallation reactions as a possible mechanism…

Astrophysics · Physics 2009-11-10 Ko Nakamura , Toshikazu Shigeyama

Recent progress in numerical simulations of thermonuclear supernova explosions brings up a unique opportunity in studying the progenitors of Type Ia supernovae. Coupling state-of-the-art explosion models with detailed hydrodynamical…

High Energy Astrophysical Phenomena · Physics 2015-03-26 D. Kosenko , W. Hillebrandt , M. Kromer , S. I. Blinnikov , R. Pakmor , J. S. Kaastra

Nuclear astrophysics aims at unraveling the cosmic origins of chemical elements and the physical processes powering stars. It constitutes a truly multidisciplinary field, that integrates tools, advancements, and accomplishments from…

Solar and Stellar Astrophysics · Physics 2026-01-23 Jordi Jose

Recent measurements of the reactor antineutrino emission show that there exists a spectral excess (the "bump") in the 5-7 MeV region when compared to the Huber-Muller prediction based on the conversion method. Analysis within an alternate…

Nuclear Experiment · Physics 2023-08-11 Samuel Kim , C. J. Martoff , Michael Dion , David Glasgow

We study nucleosynthesis in 'hypernovae', i.e., supernovae with very large explosion energies ($ \gsim 10^{52} $ ergs) for both spherical and aspherical explosions. The hypernova yields compared to those of ordinary core-collapse supernovae…

Astrophysics · Physics 2015-05-20 K. Nomoto , K. Maeda , H. Umeda , T. Nakamura

Progress in the three-dimensional modeling of supernovae (SN) prompts us to revisit the supernova remnant (SNR) phase. We continue our study of the imprint of a thermonuclear explosion on the SNR it produces, that we started with a…

It is a well-established fact that intranuclear-cascade models generally fail to consistently reproduce the cross sections for one-proton and one-neutron removal from stable nuclei by a high-energy proton beam. We use simple shell-model…

We present a simple criterion to predict the explodability of massive stars based on the density and entropy profiles before collapse. If a pronounced density jump is present near the Si/Si-O interface, the star will likely explode. We…

High Energy Astrophysical Phenomena · Physics 2023-05-31 Luca Boccioli , Lorenzo Roberti , Marco Limongi , Grant J. Mathews , Alessandro Chieffi

The production of light hypernuclei in relativistic heavy-ion collisions provides a unique opportunity to probe hyperon--nucleon interactions and possible three-body forces, which are central to the resolution of the hyperon puzzle in…

Nuclear Theory · Physics 2026-03-17 Yue Hang Leung , Yingjie Zhou , Norbert Herrmann

A principal `supernova neutrino challenge' is the computational difficulty of six-dimensional neutrino radiation hydrodynamics. The variety of resulting approximations has provoked a long history of uncertainty in the core-collapse…

Astrophysics · Physics 2009-11-10 Christian Y. Cardall

New facilities to measure neutrino-nucleus cross sections, such as those possible in conjunction with spallation neutron sources, could provide an experimental foundation for the many neutrino-nucleus weak interaction rates needed in…

Astrophysics · Physics 2008-11-26 W. R. Hix , A. Mezzacappa , O. E. B. Messer , S. W. Bruenn

Explosive nucleosynthesis is a combination of the nuclear physics of thermonuclear reactions, and the hydrodynamics of the plasma in which the reactions occur. It depends upon the initial conditions---the stellar evolution up to the…

Astrophysics · Physics 2009-10-31 David Arnett
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