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Machine learning opportunities for nucleosynthesis studies

open access: yesFrontiers in Astronomy and Space Sciences
Nuclear astrophysics is an interdisciplinary field focused on exploring the impact of nuclear physics on the evolution and explosions of stars and the cosmic creation of the elements.
M S Smith, Dan Lu
exaly   +3 more sources

Eighteen Years of Kilonova Discoveries with Swift

open access: yesUniverse, 2023
Swift has now completed 18 years of mission, during which it discovered thousands of gamma-ray bursts as well as new classes of high-energy transient phenomena.
Eleonora Troja
doaj   +1 more source

Slow Neutron-Capture Process: Low-Mass Asymptotic Giant Branch Stars and Presolar Silicon Carbide Grains

open access: yesUniverse, 2022
Presolar grains are microscopic dust grains that formed in the stellar winds or explosions of ancient stars that died before the formation of the solar system.
Nan Liu, Sergio Cristallo, Diego Vescovi
doaj   +1 more source

The building blocks of the universe

open access: yesHTS Teologiese Studies/Theological Studies, 2021
I review the state of knowledge of the composition of the universe for a non-specialist audience. The universe is built up of four components. These are radiation, baryonic (ordinary) matter, dark matter and dark energy.
Anslyn J. John
doaj   +1 more source

Solar data uncertainty impacts on MCMC methods for r-process nucleosynthesis

open access: yesFrontiers in Physics, 2022
In recent work, we developed a Markov Chain Monte Carlo (MCMC) procedure to predict the ground state masses capable of forming the observed Solar r-process rare-earth abundance peak.
Nicole Vassh   +4 more
doaj   +1 more source

Post-AGB Stars as Tracers of AGB Nucleosynthesis: An Update

open access: yesUniverse, 2022
The chemical evolution of galaxies is governed by the chemical yields from stars, and here we focus on the important contributions from asymptotic giant branch (AGB) stars. AGB nucleosynthesis is, however, still riddled with complexities.
Devika Kamath, Hans Van Winckel
doaj   +1 more source

Experiments probing clustering effects in explosive nucleosynthesis

open access: yesFrontiers in Physics, 2023
Nuclear clustering affects the nucleosynthesis occurring in a number of astrophysical environments. Highly-clusterized nuclear states typically occur near particle thresholds and therefore can produce dramatic impacts on the nuclear reaction rates.
D. W. Bardayan
doaj   +1 more source

Impact of AGB Stars on the Chemical Evolution of Neutron-Capture Elements

open access: yesUniverse, 2022
In this review, we discuss the impact of s-process nucleosynthesis in asymptotic giant branch stars on the enrichment of heavy elements. We review the main steps made on this subject in the last 40 years and discuss the importance of modelling the ...
Gabriele Cescutti, Francesca Matteucci
doaj   +1 more source

The NuGrid AGB Evolution and Nucleosynthesis Data Set

open access: yesUniverse, 2022
Asymptotic Giant Branch (AGB) stars play a key role in the chemical evolution of galaxies. These stars are the fundamental stellar site for the production of light elements such as C, N and F, and half of the elements heavier than Fe via the slow neutron
Umberto Battino   +4 more
doaj   +1 more source

Núcleos exóticos e síntese dos elementos químicos

open access: yesQuímica Nova, 2012
We have around ninety chemical elements available in nature, which were produced mainly by nuclear reactions inside stars. The fusion reactions are the main synthesis process which generates the light and intermediate masses elements.
Nilton Teruya, Sérgio Barbosa Duarte
doaj   +1 more source

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