Results 11 to 20 of about 67,641 (245)
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
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MESA and NuGrid simulations of classical novae: CO and ONe nova nucleosynthesis [PDF]
, 2014 Classical novae are the result of thermonuclear flashes of hydrogen accreted by CO or ONe white dwarfs, leading eventually to the dynamic ejection of the surface layers.
Pavel A. Denissenkov +8 more
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Proton-rich nucleosynthesis and nuclear physics [PDF]
, 2012 Although the detailed conditions for explosive nucleosynthesis are derived from astrophysical modeling, nuclear physics determines fundamental patterns in abundance yields, not only for equilibrium processes. Focussing on the nu p- and the gamma-process,
T. Rauscher, Carla Fröhlich
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Nucleosynthesis in multinucleon transfer reactions
European Physical Journal A, 2022 How does one populate still vacant areas on the chart of nuclides? Mainly on the neutron-rich side several thousand further isotopes are expected to exist, including most of the nuclei along the astrophysical r-process path.
S. Heinz, H. M. Devaraja
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Improved big bang nucleosynthesis constraints on heavy neutral leptons
Physical Review D, 2021 We constrain the lifetime of thermally produced heavy neutral leptons (HNLs) from big bang nucleosynthesis. We show that even a small fraction of mesons present in the primeval plasma leads to the overproduction of primordial helium-4.
A. Boyarsky +3 more
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An extended analysis of Heavy Neutral Leptons during Big Bang Nucleosynthesis [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 Heavy Neutral Leptons (HNLs) are strongly motivated by theory due to their capability of simultaneously explaining the observed phenomena of dark matter, neutrino oscillations and the baryon asymmetry of the Universe.
N. Sabti, Andrii Magalich, A. Filimonova
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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
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Light curves of the neutron star merger GW170817/SSS17a: Implications for r-process nucleosynthesis [PDF]
Science, 2017 Photons from a gravitational wave event Two neutron stars merging together generate a gravitational wave signal and have also been predicted to emit electromagnetic radiation. When the gravitational wave event GW170817 was detected, astronomers rushed to
M. Drout +54 more
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Big-Bang Nucleosynthesis after Planck [PDF]
Journal of Cosmology and Astroparticle Physics, 2019 We assess the status of big-bang nucleosynthesis (BBN) in light of the final Planck data release and other recent developments, and in anticipation of future measurements.
B. Fields +3 more
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The impact of new d(p,γ)3 rates on Big Bang Nucleosynthesis
Journal of Cosmology and Astroparticle Physics, 2021 We consider the effect on Big Bang Nucleosynthesis (BBN) of new measurements of the d(p,γ)3 cross section by the LUNA Collaboration. These have an important effect on the primordial abundance of D/H which is also sensitive to the baryon density at the ...
Tsung-Han Yeh, K. Olive, B. Fields
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