Results 11 to 20 of about 13,955 (228)

Primordial Nucleosynthesis [PDF]

open access: yesJournal of Physics: Conference Series, 2013
Invited Plenary Talk given at the 11th International Conference on Nucleus-Nucleus Collisions (NN2012), San Antonio, Texas, USA, May 27-June 1, 2012. To appear in the NN2012 Proceedings in Journal of Physics: Conference Series (JPCS)
Coc, A.
openaire   +13 more sources

Big Bang nucleosynthesis

open access: yes
One of the most compelling pieces of evidence of the Hot Big Bang model is the realisation and confirmation that some nuclides were created shortly after the Big Bang. This process is referred to as Big Bang nucleosynthesis (or, sometimes, primordial nucleosynthesis), and is the end-product of putting neutrons and protons in a hot, expanding Universe ...
Cooke, Ryan
openaire   +3 more sources

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.
Michael Smith
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

Neutrino nucleosynthesis [PDF]

open access: yesPhysics Letters B, 2005
We study neutrino process nucleosynthesis in massive stars using newly calculated cross sections, an expanded reaction network, and complete and self-consistent models of the progenitor star. We reevaluate the production of light isotopes from abundant progenitors as well as that of rare, heavy, proton-rich isotopes.
Heger, A.   +5 more
openaire   +3 more sources

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

Hypernovae and their nucleosynthesis [PDF]

open access: yesSymposium - International Astronomical Union, 2003
We review the characteristics of nucleosynthesis in ‘hypernovae’, i.e., core-collapse supernovae with very large explosion energies (≳ 1052 ergs). The hypernova yields show the following characteristics: (i) the mass ratio between the complete and incomplete Si burning regions is larger in hypernovae than normal supernovae.
Nomoto, Ken'ichi   +5 more
openaire   +2 more sources

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

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