Violent mergers revisited: The origin of the fastest stars in the Galaxy
Astronomy & AstrophysicsBinary systems of two carbon-oxygen white dwarfs are one of the most promising candidates for the progenitor systems of Type Ia supernovae. Violent mergers, where the primary white dwarf ignites when the secondary white dwarf smashes into it while being ...
Pakmor Rüdiger +14 more
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The origins of neutron-capture elements in globular cluster M22
Frontiers in Astronomy and Space SciencesIntroductionThe chemical abundances of metal poor (MP) stars in globular clusters provide valuable information for constraining their evolutionary scenarios.MethodsUsing both main r-process and weak r-process patterns, we fit the abundances of s-poor ...
Muhammad Zeshan Ashraf +2 more
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Physical Conditions for Synthesis of Sc, Ti, and V in Neutrino-driven Supernovae
The Astrophysical JournalWe present the results of simulations of nucleosynthesis in a core-collapse supernova including the neutrino process. Using the Si layer of a 13 M _⊙ zero-metal progenitor as the initial composition, we calculate the nucleosynthesis by adopting the ...
Ryota Hatami +4 more
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A metal-poor star with abundances from a pair-instability supernova. [PDF]
Nature, 2023 Xing QF +9 more
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Influence of the variation of fundamental constants on the primordial nucleosynthesis
, 2012 We investigate the effect of a variation of fundamental constants on primordial element production in Big Bang nucleosynthesis (BBN). We focus on the effect of a possible change in the nucleon-nucleon interaction on nuclear reaction rates involving the A=
Coc, Alain +3 more
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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 ...
openaire +2 more sources
Measuring neutron capture cross sections of radioactive nuclei: From activations at the FZK Van de Graaff to direct neutron captures in inverse kinematics with a storage ring at TRIUMF. [PDF]
Eur Phys J A Hadron Nucl, 2023 Dillmann I +10 more
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From deep earth to deep stars: A different nuclear reaction path to generate calcium in ancient stars. [PDF]
Innovation (Camb), 2023 Yan H, Shi J, Hou S.
europepmc +1 more source
Gravity and Cosmology in Kaniadakis Statistics: Current Status and Future Challenges. [PDF]
Entropy (Basel), 2022 Luciano GG.
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