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Nucleosynthesis in Supernovae [PDF]
Physical Review Letters, 1999 Core collapse supernovae are dominated by energy transport from neutrinos. Therefore, some supernova properties could depend on symetries and features of the standard model weak interactions. The cross section for neutrino capture is larger than that for
C. J. Horowitz, Gang Li
core +8 more sources
Chaotic amplification of neutrino chemical potentials by neutrino oscillations in big bang nucleosynthesis [PDF]
, 1996 We investigate in detail the parameter space of active-sterile neutrino oscillations that amplifies neutrino chemical potentials at the epoch of Big Bang Nucleosynthesis.
Xiangdong Shi
openalex +4 more sources
Post-AGB Stars as Tracers of AGB Nucleosynthesis: An Update
Universe, 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
Eighteen Years of Kilonova Discoveries with Swift
Universe, 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
Universe, 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
HTS 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
Frontiers 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
Experiments probing clustering effects in explosive nucleosynthesis
Frontiers 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
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Screening Effects in Stars and in the Laboratory
Frontiers in Physics, 2022 Nuclear reactions are the driver of the evolution of many astrophysical objects. In the astrophysical environment their respective reaction rates are, however, modified due to the presence of other charges.
Marialuisa Aliotta +2 more
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s-Processing in Asymptotic Giant Branch Stars in the Light of Revised Neutron-Capture Cross Sections
Universe, 2021 Current AGB stellar models provide an adequate description of the s-process nucleosynthesis that occurs. Nonetheless, they still suffer from many uncertainties related to the modeling of the 13C pocket formation and the adopted nuclear reaction rates ...
Diego Vescovi, René Reifarth
doaj +1 more source