Results 31 to 40 of about 161,423 (202)
STELLAR NUCLEOSYNTHESIS IN THE HYADES OPEN CLUSTER [PDF]
The Astrophysical Journal, 2009 We report a comprehensive light element (Li, C, N, O, Na, Mg, and Al) abundance analysis of three solar-type main sequence (MS) dwarfs and three red giant branch (RGB) clump stars in the Hyades open cluster using high-resolution and high signal-to-noise spectroscopy.
Schuler, Simon C +2 more
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The Influence of Nuclear Reactions and Nuclear Structure in Astrophysics
EPJ Web of Conferences, 2017 Nuclear reactions play an important role for the energy production and the nucleosynthesis in stars. New facilities, able to accelerate radioactive nuclei or high-intensity stable beams have allowed us to measure in the laboratory reactions involving ...
Rehm K. E.
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Structure effects of 20N in elemental abundance estimations during explosive nucleosynthesis [PDF]
EPJ Web of ConferencesMost nuclei far from the valley of stability, and typically near the drip lines, exhibit exotic features that have challenged our current understanding of nuclear structure.
Barman Jinti, Chatterjee Rajdeep
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Nucleosynthesis in Stellar Explosions [PDF]
, 1984 The final evolution and explosion of stars from 10 M⊙ to 106 M⊙ are reviewed with emphasis on factors affecting the expected nucleosynthesis. We order our paper in a sequence of decreasing mass. If, as many suspect, the stellar birth function was peaked towards larger masses at earlier times (see e.g., Silk 1977; but also see Palla, Salpeter, and ...
Woosley, S. E. +2 more
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Probing the fission properties of neutron-rich actinides with the astrophysical r process [PDF]
EPJ Web of Conferences, 2020 We review recent work examining the influence of fission in rapid neutron capture (r-process) nucleosynthesis which can take place in astrophysical environments.
Vassh Nicole +4 more
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Exploring the origin of the rarest stable isotopes naturally occurring on Earth with real photon beams [PDF]
EPJ Web of ConferencesThis lecture brings into focus research work that aims to advance fundamental knowledge on a forefront topic in nuclear astrophysics – the nucleosynthesis beyond Fe of the rarest stable isotopes naturally occurring on Earth (the origin of p-nuclei).
Banu Adriana
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Stellar signatures of inhomogeneous big bang nucleosynthesis [PDF]
Physical Review D, 2020 We evaluate abundance anomalies generated in patches of the universe where the baryon-to-photon ratio was locally enhanced by possibly many orders of magnitude in the range $η= 10^{-10} - 10^{-1}$. Our study is motivated by the possible survival of rare dense regions in the early universe, the most extreme of which, above a critical threshold ...
Alexandre Arbey +2 more
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Stellar Evolution and Convection in 3D Hydrodynamic Simulations of a Complete Burning Phase
GalaxiesOur understanding of stellar evolution and nucleosynthesis is limited by the uncertainties coming from the complex multi-dimensional processes in stellar interiors, such as convection and nuclear burning. Three-dimensional stellar models can improve this
Federico Rizzuti +8 more
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Outstanding problems in nuclear astrophysics: recent progress at TRIUMF
AIP Advances, 2014 Recent experimental and theoretical efforts at TRIUMF on nuclear reactions relevant to big bang nucleosynthesis, quiescent stellar fusion, classical novae, and Type I X-ray bursts are described.
B. Davids
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Atomic Data for Stellar Nucleosynthesis [PDF]
Proceedings of the International Astronomical Union, 2015 AbstractStellar chemical composition analyses can only yield reliable abundances if the atomic transition parameters are accurately determined. During the last couple of decades a renewed emphasis on laboratory spectroscopy has produced large sets of useful atomic transition probabilities for species of interest to stellar spectroscopists.
Christopher Sneden +3 more
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