Results 1 to 10 of about 66,893 (303)
Nucleosynthesis and Kilonovae from Strange Star Mergers
Universe, 2019 In this talk, we summarize the work in progress toward a full characterization of strange star−strange star (SS−SS) mergers related to the GW/GRB/kilonova events.
J. E. Horvath +5 more
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Geophysical Research Letters, Volume 50, Issue 4, 28 February 2023., 2023 Abstract We employed MC‐ICP‐MS to measure the mass‐dependent Ca isotope compositions of Vesta‐related meteorites. Eucrites and diogenites show distinct Ca isotope compositions, which is caused by crystallization of isotopically heavy orthopyroxene. The Ca isotope data support a model where the two lithologies are linked, where the diogenites, mainly ...
Ke Zhu +5 more
wiley +1 more source
Positron Transport and Annihilation in the Galactic Bulge
Galaxies, 2018 The annihilation of positrons in the Milky Way Galaxy has been observed for ∼50 years; however, the production sites of these positrons remains hard to identify.
Fiona Helen Panther
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QUÍMICA ESTELAR E ESTRELAS APOCALÍPTICAS: ESTUDO COMPARATIVO
Colloquium Exactarum, 2012 All atoms existing in the Universe, except Hydrogen (H) and helium (He), arise from processes occurring in stars and their evolution. The stars transmute the H and He in other heavier elements through nuclear fusion and its process rolling, filling and ...
Nikele Milani +3 more
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The Evolution and Explosion of Massive Stars. II. Explosive Hydrodynamics and Nucleosynthesis
, 1995 The nucleosynthetic yield of isotopes lighter than A = 66 (zinc) is determined for a grid of stellar masses and metallicities including stars of 11, 12, 13, 15, 18, 19, 20, 22, 25, 30, 35, and 40 M{sub {circle_dot}} and metallicities Z = 0, 10{sup {minus}
S. Woosley, T. Weaver
semanticscholar +1 more source
Big bang nucleosynthesis: Present status [PDF]
, 2015 Big-bang nucleosynthesis (BBN) describes the production of the lightest nuclides via a dynamic interplay among the four fundamental forces during the first seconds of cosmic time.
R. Cyburt +3 more
semanticscholar +1 more source
Primordial nucleosynthesis with varying fundamental constants [PDF]
Astronomy & Astrophysics, 2020 The success of primordial nucleosynthesis as a cornerstone of the hot Big Bang model has been limited by the long-standing lithium problem. Recent work presented a self-consistent perturbative analysis of the effects of variations in nature’s fundamental
M. T. Clara, C. J. A. P. Martins
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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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Nucleosynthesis in magneto-rotational supernovae [PDF]
Monthly notices of the Royal Astronomical Society, 2020 We present the nucleosynthesis of magneto-rotational supernovae (MR-SNe) including neutrino-driven and magneto-rotational-driven ejecta based, for the first time, on two-dimensional simulations with accurate neutrino transport. The models analysed here
M. Reichert +4 more
semanticscholar +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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